diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/CallableMethod.java b/compiler/backend/src/org/jetbrains/jet/codegen/CallableMethod.java
index 518e04b3444..9f36f7c4f14 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/CallableMethod.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/CallableMethod.java
@@ -151,6 +151,6 @@ public class CallableMethod implements Callable {
 
     @Override
     public String toString() {
-        return Printer.OPCODES[invokeOpcode] + " " + owner + "." + signature;
+        return Printer.OPCODES[invokeOpcode] + " " + owner.getInternalName() + "." + signature;
     }
 }