diff --git a/idea/src/org/jetbrains/jet/plugin/highlighter/IdeErrorMessages.java b/idea/src/org/jetbrains/jet/plugin/highlighter/IdeErrorMessages.java
index d22dda9ae86..1c8fa601204 100644
--- a/idea/src/org/jetbrains/jet/plugin/highlighter/IdeErrorMessages.java
+++ b/idea/src/org/jetbrains/jet/plugin/highlighter/IdeErrorMessages.java
@@ -74,6 +74,10 @@ public class IdeErrorMessages {
RENDER_CLASS_OR_OBJECT, DescriptorRenderer.HTML);
MAP.put(CONFLICTING_OVERLOADS, "{1}
is already defined in ''{0}''", DescriptorRenderer.HTML, TO_STRING);
+ MAP.put(RESULT_TYPE_MISMATCH, "Function return type mismatch." +
+ "| Expected: | {1} |
" +
+ "| Found: | {2} |
", TO_STRING, RENDER_TYPE, RENDER_TYPE);
+
MAP.setImmutable();
}