diff --git a/src/sysdep.c b/src/sysdep.c
index f9390c3c239..1e3904c5ad4 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -2533,7 +2533,7 @@ char *sys_siglist[NSIG + 1] =
 #endif /* not AIX */
   0
   };
-#endif HAVE_SYS_SIGLIST
+#endif /* HAVE_SYS_SIGLIST */
 
 /*
  *	Warning, this function may not duplicate 4.2 action properly