1 files changed, 2 insertions, 2 deletions
diff --git a/bin/sh/error.h b/bin/sh/error.h
index b86e177..938ef91 100644
--- a/bin/sh/error.h
+++ b/bin/sh/error.h
@@ -91,8 +91,8 @@ extern volatile sig_atomic_t intpending;
 
 void exraise __P((int));
 void onint __P((void));
-void error __P((char *, ...));
-void exerror __P((int, char *, ...));
+void error __P((const char *, ...)) __printf0like(1, 2);
+void exerror __P((int, const char *, ...)) __printf0like(2, 3);
 char *errmsg __P((int, int));