diff --git a/pbx/pbx_config.c b/pbx/pbx_config.c
index c7826d0c6ffe52b3038759415466b021c4cbd189..28509515f142001f3e6dff05884ffa5b2433445d 100755
--- a/pbx/pbx_config.c
+++ b/pbx/pbx_config.c
@@ -1623,6 +1623,7 @@ static int pbx_load_module(void)
 
 							if (!data)
 								data="";
+							while(*appl && (*appl < 33)) appl++;
 							pbx_substitute_variables_helper(NULL, ext, realext, sizeof(realext) - 1);
 							if (ipri) {
 								if (ast_add_extension2(con, 0, realext, ipri, cidmatch, appl, strdup(data), FREE, registrar)) {