diff --git a/VectorType.cpp b/VectorType.cpp
index cb7a658..f883da7 100644
--- a/VectorType.cpp
+++ b/VectorType.cpp
@@ -75,7 +75,7 @@
 }
 
 bool VectorType::isVectorOfBinders() const {
-    return mElementType->isBinder();
+    return mElementType->isInterface();
 }
 
 bool VectorType::deepCanCheckEquality(std::unordered_set<const Type*>* visited) const {