diff --git a/idea/testData/codegen/classes/classObjectMethod.jet b/idea/testData/codegen/classes/classObjectMethod.jet
new file mode 100644
index 00000000000..c4a67260553
--- /dev/null
+++ b/idea/testData/codegen/classes/classObjectMethod.jet
@@ -0,0 +1,13 @@
+abstract open class Default {
+  fun defaultValue(): Int
+}
+
+class MyInt() {
+  class object : Default {
+    override fun defaultValue(): Int = 610
+  }
+}
+
+fun toDefault<T: Any> where class object T: Default(t: T) = T.defaultValue()
+
+fun box(): String = if (toDefault<MyInt>(MyInt()) == 610) "OK" else "fail"
diff --git a/idea/tests/org/jetbrains/jet/codegen/ClassGenTest.java b/idea/tests/org/jetbrains/jet/codegen/ClassGenTest.java
index 4dbcc712247..5c361782df3 100644
--- a/idea/tests/org/jetbrains/jet/codegen/ClassGenTest.java
+++ b/idea/tests/org/jetbrains/jet/codegen/ClassGenTest.java
@@ -119,4 +119,8 @@ public class ClassGenTest extends CodegenTestCase {
     public void testClassObject() throws Exception {
         blackBoxFile("classes/classObject.jet");
     }
+
+    public void testClassObjectMethod() throws Exception {
+        blackBoxFile("classes/classObjectMethod.jet");
+    }
 }