diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFunctionElementType.java b/compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFunctionElementType.java
index ca435954d05..dfdfc6295fc 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFunctionElementType.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFunctionElementType.java
@@ -25,8 +25,8 @@ import com.intellij.psi.stubs.StubOutputStream;
 import com.intellij.util.io.StringRef;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.JetNamedFunction;
-import org.jetbrains.jet.lang.psi.stubs.PsiJetFileStub;
 import org.jetbrains.jet.lang.psi.stubs.PsiJetFunctionStub;
 import org.jetbrains.jet.lang.psi.stubs.impl.PsiJetFunctionStubImpl;
 import org.jetbrains.jet.lang.resolve.name.FqName;
@@ -67,7 +67,7 @@ public class JetFunctionElementType extends JetStubElementType<PsiJetFunctionStu
 
     @Override
     public PsiJetFunctionStub createStub(@NotNull JetNamedFunction psi, @NotNull StubElement parentStub) {
-        final boolean isTopLevel = parentStub instanceof PsiJetFileStub;
+        final boolean isTopLevel = psi.getParent() instanceof JetFile;
         final boolean isExtension = psi.getReceiverTypeRef() != null;
 
         FqName qualifiedName = psi.getQualifiedName();
diff --git a/idea/tests/org/jetbrains/jet/plugin/stubs/JetStubsTest.java b/idea/tests/org/jetbrains/jet/plugin/stubs/JetStubsTest.java
index 91caad9243b..39123605a96 100644
--- a/idea/tests/org/jetbrains/jet/plugin/stubs/JetStubsTest.java
+++ b/idea/tests/org/jetbrains/jet/plugin/stubs/JetStubsTest.java
@@ -75,6 +75,13 @@ public class JetStubsTest extends LightCodeInsightFixtureTestCase {
                     "      TYPE_PARAMETER:PsiJetTypeParameterStubImpl[name=T extendText=null]\n");
     }
 
+    public void testFunctionInNotNamedObject() {
+        doBuildTest("object { fun testing() = 12 }",
+                    "PsiJetFileStubImpl[package=]\n" +
+                    "  FUN:PsiJetFunctionStubImpl[name=testing]\n" +
+                    "    VALUE_PARAMETER_LIST:PsiJetParameterListStubImpl\n");
+    }
+
     public void testFunctionParameters() {
         doBuildTest("fun some(t: Int, other: String = \"hello\") { }",
                     "PsiJetFileStubImpl[package=]\n" +