1 files changed, 1 insertions, 1 deletions
diff --git a/malloc.c b/malloc.c
index 1ff10bec4b..affe76371e 100644
--- a/malloc.c
+++ b/malloc.c
@@ -409,7 +409,7 @@
 #  ifndef pTHX
 #     define pTHX		void
 #     define pTHX_
-#     ifdef HASATTRIBUTE
+#     ifdef HASATTRIBUTE_UNUSED
 #        define dTHX		extern int Perl___notused PERL_UNUSED_DECL
 #     else
 #        define dTHX            extern int Perl___notused