diff --git a/apps/app_echo.c b/apps/app_echo.c
index 1a8abe9f001c55b4ecb2a3c03a951d185cf5d829..76c701cd70266b1d289629bad290bd42d37605b3 100644
--- a/apps/app_echo.c
+++ b/apps/app_echo.c
@@ -54,8 +54,9 @@ static int echo_exec(struct ast_channel *chan, void *data)
 
 	while (ast_waitfor(chan, -1) > -1) {
 		struct ast_frame *f = ast_read(chan);
-		if (!f)
+		if (!f) {
 			break;
+		}
 		f->delivery.tv_sec = 0;
 		f->delivery.tv_usec = 0;
 		if (ast_write(chan, f)) {