diff --git a/cli.c b/cli.c
index b8cbc939ed..f93c580532 100755
--- a/cli.c
+++ b/cli.c
@@ -1108,7 +1108,7 @@ static int handle_help(int fd, int argc, char *argv[]) {
 		e = find_cli(argv + 1, 1);
 		if (e) {
 			if (e->usage)
-				ast_cli(fd, e->usage);
+				ast_cli(fd, "%s", e->usage);
 			else {
 				join(fullcmd, sizeof(fullcmd), argv+1);
 				ast_cli(fd, "No help text available for '%s'.\n", fullcmd);