diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/OperatorConventions.java b/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/OperatorConventions.java
index 0392ee47cc8..5e9bf62dc74 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/OperatorConventions.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/types/expressions/OperatorConventions.java
@@ -66,7 +66,7 @@ public class OperatorConventions {
             .build();
 
     public static final ImmutableSet<JetToken> NOT_OVERLOADABLE = 
-            ImmutableSet.<JetToken>of(JetTokens.ANDAND, JetTokens.OROR, JetTokens.ELVIS);
+            ImmutableSet.<JetToken>of(JetTokens.ANDAND, JetTokens.OROR, JetTokens.ELVIS, JetTokens.EQEQEQ, JetTokens.EXCLEQEQEQ);
     
     public static final ImmutableSet<JetToken> INCREMENT_OPERATIONS =
             ImmutableSet.<JetToken>of(JetTokens.PLUSPLUS, JetTokens.MINUSMINUS);