diff --git a/man2/mprotect.2 b/man2/mprotect.2
index 5828c3eda..232a2aaca 100644
--- a/man2/mprotect.2
+++ b/man2/mprotect.2
@@ -140,7 +140,7 @@ main(void)
     c = p[666];         /* Read; ok */
     p[666] = 42;        /* Write; program dies on SIGSEGV */
 
-    exit(0);
+    exit(EXIT_SUCCESS);
 }
 .fi
 .SH "CONFORMING TO"