diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/build.log.expected b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/build.log.expected
new file mode 100644
index 00000000000..b67fc554192
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/build.log.expected
@@ -0,0 +1,18 @@
+OUT:
+Buildfile: [TestData]/build.xml
+
+build:
+    [mkdir] Created dir: [Temp]/lib
+[kotlin2js] Compiling [[TestData]/jslib-example1] => [[Temp]/lib/jslib-example1.js]
+[kotlin2js] Compiling [[TestData]/jslib-example2] => [[Temp]/lib/jslib-example2.js]
+   [delete] Deleting: [Temp]/lib/jslib-example1.js
+   [delete] Deleting: [Temp]/lib/jslib-example2.js
+   [delete] Deleting: [Temp]/lib/jslib-example1.meta.js
+   [delete] Deleting: [Temp]/lib/jslib-example2.meta.js
+[kotlin2js] Compiling [[TestData]/root1] => [[Temp]/out.js]
+     [copy] Copying 1 file to [Temp]
+
+BUILD SUCCESSFUL
+Total time: [time]
+
+Return code: 0
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/build.xml b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/build.xml
new file mode 100644
index 00000000000..dd3671f4f93
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/build.xml
@@ -0,0 +1,40 @@
+<project name="Ant Task Test" default="build">
+  <taskdef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
+  <property name="library.path1" value="${test.data}/jslib-example1"/>
+  <property name="library.path2" value="${test.data}/jslib-example2"/>
+  <property name="temp.library.path" value="${temp}/lib"/>
+  <target name="build">
+    <mkdir dir="${temp.library.path}"/>
+
+    <kotlin2js src="${library.path1}" output="${temp.library.path}/jslib-example1.js" metaInfo="${temp.library.path}/jslib-example1.meta.js"/>
+    <kotlin2js src="${library.path2}" output="${temp.library.path}/jslib-example2.js" metaInfo="${temp.library.path}/jslib-example2.meta.js">
+      <library>
+        <pathelement path="${temp.library.path}/jslib-example1.meta.js"/>
+      </library>
+    </kotlin2js>
+
+    <concat destfile="${temp.library.path}/jslib-example.js">
+      <fileset  file="${temp.library.path}/jslib-example1.js"/>
+      <fileset  file="${temp.library.path}/jslib-example2.js"/>
+      <fileset  file="${temp.library.path}/jslib-example1.meta.js"/>
+      <fileset  file="${temp.library.path}/jslib-example2.meta.js"/>
+    </concat>
+
+    <delete file="${temp.library.path}/jslib-example1.js"/>
+    <delete file="${temp.library.path}/jslib-example2.js"/>
+    <delete file="${temp.library.path}/jslib-example1.meta.js"/>
+    <delete file="${temp.library.path}/jslib-example2.meta.js"/>
+
+    <kotlin2js src="${test.data}/root1" output="${temp}/out.js" main="call">
+      <library>
+        <pathelement path="${temp.library.path}/jslib-example.js"/>
+      </library>
+    </kotlin2js>
+    <copy todir="${temp}">
+      <fileset dir="${temp.library.path}">
+        <include name="**/*.js"/>
+        <exclude name="META-INF/**"/>
+      </fileset>
+    </copy>
+  </target>
+</project>
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/jslib-example1/LibraryExample.kt b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/jslib-example1/LibraryExample.kt
new file mode 100644
index 00000000000..16ecae42d13
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/jslib-example1/LibraryExample.kt
@@ -0,0 +1,9 @@
+package library.sample
+
+import kotlin.js.Date
+
+public class ClassA() {
+    val value: Int = 100
+}
+
+public fun Date.extFun(): String = "Date.extFun"
\ No newline at end of file
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/jslib-example2/LibraryExample.kt b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/jslib-example2/LibraryExample.kt
new file mode 100644
index 00000000000..540ae2c6468
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/jslib-example2/LibraryExample.kt
@@ -0,0 +1,3 @@
+package library.sample
+
+public fun ClassA.extFun(): String = "ClassA.extFun"
\ No newline at end of file
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/root1/foo.kt b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/root1/foo.kt
new file mode 100644
index 00000000000..043ee06b6c7
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary/root1/foo.kt
@@ -0,0 +1,15 @@
+package foo
+
+import library.sample.*
+import kotlin.js.Date
+
+var ok = "FAIL"
+
+fun main(args: Array<String>) {
+    val x = ClassA().value
+    if (x == 100 && Date().extFun() == "Date.extFun" && ClassA().extFun() == "ClassA.extFun") {
+        ok = "OK"
+    }
+}
+
+fun box(): String = ok
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/build.log.expected b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/build.log.expected
new file mode 100644
index 00000000000..aff5c825abe
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/build.log.expected
@@ -0,0 +1,14 @@
+OUT:
+Buildfile: [TestData]/build.xml
+
+build:
+    [mkdir] Created dir: [Temp]/lib
+[kotlin2js] Compiling [[TestData]/jslib-example1] => [[Temp]/lib/jslib-example1.js]
+[kotlin2js] Compiling [[TestData]/jslib-example2] => [[Temp]/lib/jslib-example2.js]
+[kotlin2js] Compiling [[TestData]/root1] => [[Temp]/out.js]
+     [copy] Copying 4 files to [Temp]
+
+BUILD SUCCESSFUL
+Total time: [time]
+
+Return code: 0
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/build.xml b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/build.xml
new file mode 100644
index 00000000000..1f0cb9d5176
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/build.xml
@@ -0,0 +1,29 @@
+<project name="Ant Task Test" default="build">
+  <taskdef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
+  <property name="library.path1" value="${test.data}/jslib-example1"/>
+  <property name="library.path2" value="${test.data}/jslib-example2"/>
+  <property name="temp.library.path" value="${temp}/lib"/>
+  <target name="build">
+    <mkdir dir="${temp.library.path}"/>
+
+    <kotlin2js src="${library.path1}" output="${temp.library.path}/jslib-example1.js" metaInfo="${temp.library.path}/jslib-example1.meta.js"/>
+    <kotlin2js src="${library.path2}" output="${temp.library.path}/jslib-example2.js" metaInfo="${temp.library.path}/jslib-example2.meta.js">
+      <library>
+        <pathelement path="${temp.library.path}/jslib-example1.meta.js"/>
+      </library>
+    </kotlin2js>
+
+    <kotlin2js src="${test.data}/root1" output="${temp}/out.js" main="call">
+      <library>
+        <pathelement path="${temp.library.path}/jslib-example1.meta.js"/>
+        <pathelement path="${temp.library.path}/jslib-example2.meta.js"/>
+      </library>
+    </kotlin2js>
+    <copy todir="${temp}">
+      <fileset dir="${temp.library.path}">
+        <include name="**/*.js"/>
+        <exclude name="META-INF/**"/>
+      </fileset>
+    </copy>
+  </target>
+</project>
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/jslib-example1/LibraryExample.kt b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/jslib-example1/LibraryExample.kt
new file mode 100644
index 00000000000..16ecae42d13
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/jslib-example1/LibraryExample.kt
@@ -0,0 +1,9 @@
+package library.sample
+
+import kotlin.js.Date
+
+public class ClassA() {
+    val value: Int = 100
+}
+
+public fun Date.extFun(): String = "Date.extFun"
\ No newline at end of file
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/jslib-example2/LibraryExample.kt b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/jslib-example2/LibraryExample.kt
new file mode 100644
index 00000000000..540ae2c6468
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/jslib-example2/LibraryExample.kt
@@ -0,0 +1,3 @@
+package library.sample
+
+public fun ClassA.extFun(): String = "ClassA.extFun"
\ No newline at end of file
diff --git a/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/root1/foo.kt b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/root1/foo.kt
new file mode 100644
index 00000000000..043ee06b6c7
--- /dev/null
+++ b/compiler/testData/integration/ant/js/simpleWithStdlibAndTwoJsFilesAsLibraries/root1/foo.kt
@@ -0,0 +1,15 @@
+package foo
+
+import library.sample.*
+import kotlin.js.Date
+
+var ok = "FAIL"
+
+fun main(args: Array<String>) {
+    val x = ClassA().value
+    if (x == 100 && Date().extFun() == "Date.extFun" && ClassA().extFun() == "ClassA.extFun") {
+        ok = "OK"
+    }
+}
+
+fun box(): String = ok
diff --git a/compiler/tests/org/jetbrains/kotlin/integration/AntTaskJsTest.java b/compiler/tests/org/jetbrains/kotlin/integration/AntTaskJsTest.java
index 30e51abf007..931687b0966 100644
--- a/compiler/tests/org/jetbrains/kotlin/integration/AntTaskJsTest.java
+++ b/compiler/tests/org/jetbrains/kotlin/integration/AntTaskJsTest.java
@@ -127,6 +127,16 @@ public class AntTaskJsTest extends AntTaskBaseTest {
         doJsAntTest("jslib-example.js");
     }
 
+    @Test
+    public void simpleWithStdlibAndTwoJsFilesAsLibraries() throws Exception {
+        doJsAntTest("jslib-example1.js", "jslib-example2.js");
+    }
+
+    @Test
+    public void simpleWithStdlibAndJsFilesWithTwoModulesAsLibrary() throws Exception {
+        doJsAntTest("jslib-example.js");
+    }
+
     @Test
     public void simpleWithMainFQArgs() throws Exception {
         doJsAntTest();