diff --git a/idea/testData/editor/optimizeImports/multifile/InvokeFunction/InvokeFunction_after.kt b/idea/testData/editor/optimizeImports/multifile/InvokeFunction/InvokeFunction_after.kt
new file mode 100644
index 00000000000..bc08f1a55fb
--- /dev/null
+++ b/idea/testData/editor/optimizeImports/multifile/InvokeFunction/InvokeFunction_after.kt
@@ -0,0 +1,7 @@
+import test1.MyClass
+import test1.invoke
+
+fun foo() {
+    val s = MyClass()
+    s()
+}
diff --git a/idea/testData/editor/optimizeImports/multifile/InvokeFunction/main.kt b/idea/testData/editor/optimizeImports/multifile/InvokeFunction/main.kt
new file mode 100644
index 00000000000..bc08f1a55fb
--- /dev/null
+++ b/idea/testData/editor/optimizeImports/multifile/InvokeFunction/main.kt
@@ -0,0 +1,7 @@
+import test1.MyClass
+import test1.invoke
+
+fun foo() {
+    val s = MyClass()
+    s()
+}
diff --git a/idea/testData/editor/optimizeImports/multifile/InvokeFunction/myClass.kt b/idea/testData/editor/optimizeImports/multifile/InvokeFunction/myClass.kt
new file mode 100644
index 00000000000..b2d178bd500
--- /dev/null
+++ b/idea/testData/editor/optimizeImports/multifile/InvokeFunction/myClass.kt
@@ -0,0 +1,6 @@
+package test1
+
+public class MyClass {
+}
+
+public fun MyClass.invoke() {}
diff --git a/idea/tests/org/jetbrains/jet/plugin/importOptimizer/OptimizeImportsMultiFileTest.java b/idea/tests/org/jetbrains/jet/plugin/importOptimizer/OptimizeImportsMultiFileTest.java
index 9bd8bfb8a86..bbb8d2d6d45 100644
--- a/idea/tests/org/jetbrains/jet/plugin/importOptimizer/OptimizeImportsMultiFileTest.java
+++ b/idea/tests/org/jetbrains/jet/plugin/importOptimizer/OptimizeImportsMultiFileTest.java
@@ -38,6 +38,10 @@ public class OptimizeImportsMultiFileTest extends CodeInsightTestCase {
         doTest(getTestName(false) + "/main.kt", getTestName(false) + "/myClass.kt");
     }
 
+    public void testInvokeFunction() throws Exception {
+        doTest(getTestName(false) + "/main.kt", getTestName(false) + "/myClass.kt");
+    }
+
     public void doTest(String... fileNames) throws Exception {
         configureByFiles(null, fileNames);
         invokeFormatFile();