diff --git a/src/com/redhat/ceylon/compiler/java/codegen/ExpressionTransformer.java b/src/com/redhat/ceylon/compiler/java/codegen/ExpressionTransformer.java
index 101f06662..d752cbeeb 100755
--- a/src/com/redhat/ceylon/compiler/java/codegen/ExpressionTransformer.java
+++ b/src/com/redhat/ceylon/compiler/java/codegen/ExpressionTransformer.java
@@ -4521,7 +4521,7 @@ private JCExpression transformAssignment(Node op, Tree.Term leftTerm, Tree.Term
         if (tmpInStatement) {
             return transformAssignment(op, leftTerm, rhs);
         } else {
-            ProducedType valueType = leftTerm.getTypeModel();
+            ProducedType valueType = rightTerm.getTypeModel();
             return transformAssignAndReturnOperation(op, leftTerm, boxing == BoxingStrategy.BOXED, 
                     valueType, valueType, new AssignAndReturnOperationFactory(){
                 @Override