diff --git a/object-assign/object-assign-tests.ts b/object-assign/object-assign-tests.ts
index d285219b24..6b9a898ed4 100644
--- a/object-assign/object-assign-tests.ts
+++ b/object-assign/object-assign-tests.ts
@@ -33,7 +33,7 @@ interface Source4 {
   source4: string;
 }
 
-interface Result4 extends Result4, Source3 {
+interface Result4 extends Result3, Source4 {
   
 }