Index: main/cel.c
===================================================================
--- main/cel.c	(revision 396157)
+++ main/cel.c	(working copy)
@@ -310,7 +310,7 @@
 
 	config = ast_config_load2("cel.conf", "cel", config_flags);
 
-	if (config == CONFIG_STATUS_FILEMISSING) {
+	if (config == CONFIG_STATUS_FILEMISSING || config == CONFIG_STATUS_FILEUNCHANGED || config == CONFIG_STATUS_FILEINVALID) {
 		config = NULL;
 		goto return_cleanup;
 	}