diff --git a/ld/ldlang.c b/ld/ldlang.c
index f8ac544b5f..34bb2278cd 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -1943,7 +1943,8 @@ void
 DEFUN_VOID(lang_final)
 {
   if (had_output_filename == false) {
-    lang_add_output("a.out");
+    extern CONST char *output_filename;
+    lang_add_output(output_filename);
   }
 }