diff --git a/sysupgrade.c b/sysupgrade.c
index 96a29e9..fc588b0 100644
--- a/sysupgrade.c
+++ b/sysupgrade.c
@@ -19,10 +19,8 @@
 #include "sysupgrade.h"
 
 #include <ctype.h>
-#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <string.h>
 #include <unistd.h>
 
 #include <libubox/blobmsg.h>
@@ -105,7 +103,7 @@ void sysupgrade_exec_upgraded(const char *prefix, char *path,
 	execvp(argv[0], argv);
 
 	/* Cleanup on failure */
-	fprintf(stderr, "Failed to exec upgraded: %s\n", strerror(-errno));
+	fprintf(stderr, "Failed to exec upgraded.\n");
 	unsetenv("WDTFD");
 	watchdog_set_cloexec(true);
 	ret = chroot(".");