diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/JetTypeMapper.java b/compiler/backend/src/org/jetbrains/jet/codegen/JetTypeMapper.java
index ed2ccb6502c..02c480dd857 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/JetTypeMapper.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/JetTypeMapper.java
@@ -491,6 +491,11 @@ public class JetTypeMapper {
             return null;
 
         final DeclarationDescriptor functionParent = functionDescriptor.getOriginal().getContainingDeclaration();
+
+        while(functionDescriptor.getKind()==CallableMemberDescriptor.Kind.FAKE_OVERRIDE) {
+            functionDescriptor = functionDescriptor.getOverriddenDescriptors().iterator().next();
+        }
+
         JvmMethodSignature descriptor = mapSignature(functionDescriptor.getOriginal(), true, kind);
         String owner;
         String ownerForDefaultImpl;
diff --git a/compiler/testData/codegen/regressions/kt1600.kt b/compiler/testData/codegen/regressions/kt1600.kt
new file mode 100644
index 00000000000..e9f111a98b3
--- /dev/null
+++ b/compiler/testData/codegen/regressions/kt1600.kt
@@ -0,0 +1,8 @@
+abstract class Foo<T> {
+    fun hello(id: T) = "O$id"
+}
+
+class Bar: Foo<String>() {
+}
+
+fun box() = Bar().hello("K")
diff --git a/compiler/tests/org/jetbrains/jet/codegen/ObjectGenTest.java b/compiler/tests/org/jetbrains/jet/codegen/ObjectGenTest.java
index 52f97ed5942..a051fa517e5 100644
--- a/compiler/tests/org/jetbrains/jet/codegen/ObjectGenTest.java
+++ b/compiler/tests/org/jetbrains/jet/codegen/ObjectGenTest.java
@@ -75,4 +75,8 @@ public class ObjectGenTest extends CodegenTestCase {
     public void testKt1186() throws Exception {
         blackBoxFile("regressions/kt1186.kt");
     }
+
+    public void testKt1600() throws Exception {
+        blackBoxFile("regressions/kt1600.kt");
+    }
 }