diff --git a/main/config.c b/main/config.c
index 596528bb1b..7550fa3c2d 100644
--- a/main/config.c
+++ b/main/config.c
@@ -207,6 +207,8 @@ void ast_variable_append(struct ast_category *category, struct ast_variable *var
 	else
 		category->root = variable;
 	category->last = variable;
+	while (category->last->next)
+		category->last = category->last->next;
 }
 
 void ast_variables_destroy(struct ast_variable *v)
@@ -392,6 +394,7 @@ struct ast_variable *ast_category_detach_variables(struct ast_category *cat)
 
 	v = cat->root;
 	cat->root = NULL;
+	cat->last = NULL;
 
 	return v;
 }
@@ -977,7 +980,10 @@ int config_text_file_save(const char *configfile, const struct ast_config *cfg,
 			ast_verbose(VERBOSE_PREFIX_2 "Saving '%s': ", fn);
 		fprintf(f, ";!\n");
 		fprintf(f, ";! Automatically generated configuration file\n");
-		fprintf(f, ";! Filename: %s (%s)\n", configfile, fn);
+		if (strcmp(configfile, fn))
+			fprintf(f, ";! Filename: %s (%s)\n", configfile, fn);
+		else
+			fprintf(f, ";! Filename: %s\n", configfile);
 		fprintf(f, ";! Generator: %s\n", generator);
 		fprintf(f, ";! Creation Date: %s", date);
 		fprintf(f, ";!\n");