diff --git a/compiler/transf.nim b/compiler/transf.nim
index b56dd90f8e..98371579c2 100644
--- a/compiler/transf.nim
+++ b/compiler/transf.nim
@@ -406,7 +406,7 @@ proc makeTupleUnpack(c: PTransf; lhs: PNode; rhs: PNode): PNode =
     var field: PNode = nil
     if rhs.typ[i].kind in {tyVar, tyLent}:
       let tupleType = newTupleAccessRaw(tempNode, i)
-      tupleType.typ = rhs.typ[i]
+      tupleType.typ() = rhs.typ[i]
       field = newDeref(tupleType)
     else:
       field = newTupleAccessRaw(tempNode, i)