diff --git a/include/string b/include/string
index 8adf6d9..3368fb8 100644
--- a/include/string
+++ b/include/string
@@ -2260,7 +2260,7 @@
     if (this != &__str)
     {
         __copy_assign_alloc(__str);
-        assign(__str.data(), __str.size());
+        return assign(__str.data(), __str.size());
     }
     return *this;
 }