diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c
index 2beb62d722b..9f1615f263d 100644
--- a/sys/sparc64/sparc64/machdep.c
+++ b/sys/sparc64/sparc64/machdep.c
@@ -392,7 +392,7 @@ sendsig(sig_t catcher, int sig, sigset_t *mask, u_long code)
 	PROC_UNLOCK(p);
 
 	/*
-	 * grow_stack() will return 0 if *sfp does not fit inside the stack
+	 * vm_map_growstack() will fail if *sfp does not fit inside the stack
 	 * and the stack can not be grown.
 	 * useracc() will return FALSE if access is denied.
 	 */