diff --git a/kernel/signal.c b/kernel/signal.c
index 43b0d4a..dd72567 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -485,7 +485,7 @@
 		if (force_default || ka->sa.sa_handler != SIG_IGN)
 			ka->sa.sa_handler = SIG_DFL;
 		ka->sa.sa_flags = 0;
-#ifdef SA_RESTORER
+#ifdef __ARCH_HAS_SA_RESTORER
 		ka->sa.sa_restorer = NULL;
 #endif
 		sigemptyset(&ka->sa.sa_mask);