diff --git a/ant/src/org/jetbrains/kotlin/ant/Kotlin2JvmTask.kt b/ant/src/org/jetbrains/kotlin/ant/Kotlin2JvmTask.kt
index 5bd28044cda..b0fa7bf1b8b 100644
--- a/ant/src/org/jetbrains/kotlin/ant/Kotlin2JvmTask.kt
+++ b/ant/src/org/jetbrains/kotlin/ant/Kotlin2JvmTask.kt
@@ -70,6 +70,14 @@ public class Kotlin2JvmTask : KotlinCompilerBaseTask() {
             args.add(it.list().join(pathSeparator))
         }
 
+        if (moduleName == null) {
+            if (owningTarget != null) {
+                moduleName = owningTarget.name
+            } else {
+                moduleName = getProject().name
+            }
+        }
+
         moduleName?.let {
             args.add("-module-name")
             args.add(moduleName!!)
diff --git a/compiler/testData/integration/ant/jvm/moduleName/build.log.expected b/compiler/testData/integration/ant/jvm/moduleName/build.log.expected
new file mode 100644
index 00000000000..f3ebd0b0a4f
--- /dev/null
+++ b/compiler/testData/integration/ant/jvm/moduleName/build.log.expected
@@ -0,0 +1,11 @@
+OUT:
+Buildfile: [TestData]/build.xml
+
+build:
+  [kotlinc] Compiling [[TestData]/hello.kt] => [[Temp]/hello.jar]
+     [java] Module info 'META-INF/test.kotlin_module' exists
+
+BUILD SUCCESSFUL
+Total time: [time]
+
+Return code: 0
diff --git a/compiler/testData/integration/ant/jvm/moduleName/build.xml b/compiler/testData/integration/ant/jvm/moduleName/build.xml
new file mode 100644
index 00000000000..4f4738428d1
--- /dev/null
+++ b/compiler/testData/integration/ant/jvm/moduleName/build.xml
@@ -0,0 +1,14 @@
+<project name="Ant Task Test" default="build">
+    <taskdef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
+
+    <target name="build">
+        <kotlinc src="${test.data}/hello.kt" output="${temp}/hello.jar" modulename="test"/>
+
+        <java classname="hello.HelloPackage" fork="true">
+            <classpath>
+                <pathelement location="${temp}/hello.jar"/>
+                <pathelement location="${kotlin.runtime.jar}"/>
+            </classpath>
+        </java>
+    </target>
+</project>
diff --git a/compiler/testData/integration/ant/jvm/moduleName/hello.kt b/compiler/testData/integration/ant/jvm/moduleName/hello.kt
new file mode 100644
index 00000000000..dfc8315b01c
--- /dev/null
+++ b/compiler/testData/integration/ant/jvm/moduleName/hello.kt
@@ -0,0 +1,11 @@
+package hello
+
+fun main(args : Array<String>) {
+    val systemClassLoader = ClassLoader.getSystemClassLoader()
+    val moduleName = "META-INF/test.kotlin_module"
+    val resourceAsStream = systemClassLoader.getResourceAsStream(moduleName)
+
+    if (resourceAsStream != null) {
+        println("Module info '$moduleName' exists")
+    }
+}
diff --git a/compiler/testData/integration/ant/jvm/moduleNameDefault/build.log.expected b/compiler/testData/integration/ant/jvm/moduleNameDefault/build.log.expected
new file mode 100644
index 00000000000..ead2cbe8b0d
--- /dev/null
+++ b/compiler/testData/integration/ant/jvm/moduleNameDefault/build.log.expected
@@ -0,0 +1,11 @@
+OUT:
+Buildfile: [TestData]/build.xml
+
+build:
+  [kotlinc] Compiling [[TestData]/hello.kt] => [[Temp]/hello.jar]
+     [java] Module info 'META-INF/build.kotlin_module' exists
+
+BUILD SUCCESSFUL
+Total time: [time]
+
+Return code: 0
diff --git a/compiler/testData/integration/ant/jvm/moduleNameDefault/build.xml b/compiler/testData/integration/ant/jvm/moduleNameDefault/build.xml
new file mode 100644
index 00000000000..23fc47d8f15
--- /dev/null
+++ b/compiler/testData/integration/ant/jvm/moduleNameDefault/build.xml
@@ -0,0 +1,14 @@
+<project name="Ant Task Test" default="build">
+    <taskdef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
+
+    <target name="build">
+        <kotlinc src="${test.data}/hello.kt" output="${temp}/hello.jar"/>
+
+        <java classname="hello.HelloPackage" fork="true">
+            <classpath>
+                <pathelement location="${temp}/hello.jar"/>
+                <pathelement location="${kotlin.runtime.jar}"/>
+            </classpath>
+        </java>
+    </target>
+</project>
diff --git a/compiler/testData/integration/ant/jvm/moduleNameDefault/hello.kt b/compiler/testData/integration/ant/jvm/moduleNameDefault/hello.kt
new file mode 100644
index 00000000000..a161a0b029c
--- /dev/null
+++ b/compiler/testData/integration/ant/jvm/moduleNameDefault/hello.kt
@@ -0,0 +1,11 @@
+package hello
+
+fun main(args : Array<String>) {
+    val systemClassLoader = ClassLoader.getSystemClassLoader()
+    val moduleName = "META-INF/build.kotlin_module"
+    val resourceAsStream = systemClassLoader.getResourceAsStream(moduleName)
+
+    if (resourceAsStream != null) {
+        println("Module info '$moduleName' exists")
+    }
+}
diff --git a/compiler/tests/org/jetbrains/kotlin/integration/AntTaskTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/integration/AntTaskTestGenerated.java
index 767b993702c..1db5817d4f2 100644
--- a/compiler/tests/org/jetbrains/kotlin/integration/AntTaskTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/integration/AntTaskTestGenerated.java
@@ -65,6 +65,18 @@ public class AntTaskTestGenerated extends AbstractAntTaskTest {
         doTest(fileName);
     }
 
+    @TestMetadata("moduleName")
+    public void testModuleName() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("compiler/testData/integration/ant/jvm/moduleName/");
+        doTest(fileName);
+    }
+
+    @TestMetadata("moduleNameDefault")
+    public void testModuleNameDefault() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("compiler/testData/integration/ant/jvm/moduleNameDefault/");
+        doTest(fileName);
+    }
+
     @TestMetadata("noStdlibForJavac")
     public void testNoStdlibForJavac() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("compiler/testData/integration/ant/jvm/noStdlibForJavac/");