diff --git a/src/org/rascalmpl/interpreter/result/Result.java b/src/org/rascalmpl/interpreter/result/Result.java
index d1d4a9760b..a6847f9ecb 100644
--- a/src/org/rascalmpl/interpreter/result/Result.java
+++ b/src/org/rascalmpl/interpreter/result/Result.java
@@ -388,11 +388,11 @@ protected <U extends IValue> Result<U> subtractList(ListResult that) {
 	}
 
 	protected <U extends IValue> Result<U> multiplyList(ListResult that) {
-		return that.undefinedError(MULTIPLICATION_STRING, that);
+		return that.undefinedError(MULTIPLICATION_STRING, this);
 	}
 	
 	protected <U extends IValue> Result<U> intersectList(ListResult that) {
-		return that.undefinedError(INTERSECTION_STRING, that);
+		return that.undefinedError(INTERSECTION_STRING, this);
 	}
 
 	protected <U extends IValue> Result<U> addSet(SetResult that) {