diff --git a/apps/app_zapscan.c b/apps/app_zapscan.c
index d41723c4cc064200f1b5f5c03c7d77f523643160..97fac25072dd2eb0fc98124368fefbf80dfbd7e6 100755
--- a/apps/app_zapscan.c
+++ b/apps/app_zapscan.c
@@ -256,6 +256,8 @@ static int conf_exec(struct ast_channel *chan, void *data)
                 ast_answer(chan);
 
         for (;;) {
+		if (ast_waitfor(chan, 100) < 0)
+			break;
 		f = ast_read(chan);
 		if (!f)
 			break;