diff --git a/signal.c b/signal.c
index 96277e322c..db6980edaa 100644
--- a/signal.c
+++ b/signal.c
@@ -691,7 +691,7 @@ sigsegv(int sig SIGINFO_ARG)
 {
     if (segv_received) {
 	ssize_t RB_UNUSED_VAR(err);
-	char msg[] = "SEGV received in SEGV handler\n";
+	static const char msg[] = "SEGV received in SEGV handler\n";
 
 	err = write(2, msg, sizeof(msg));
 	ruby_abort();