diff --git a/source/ubl-settings-usergroups.c b/source/ubl-settings-usergroups.c
index d5f0deb..0c4a3d4 100644
--- a/source/ubl-settings-usergroups.c
+++ b/source/ubl-settings-usergroups.c
@@ -1218,9 +1218,12 @@ void yon_system_load(main_window *window){
 	}
 	for (int i=0;i<main_config.users_size;i++){
 		int parsed_size;
-		int shadow_parsed_size;
+		int shadow_parsed_size=0;
 		config_str parsed = yon_char_parse(main_config.users[i],&parsed_size,":");
-		config_str shadow_parsed = yon_char_parse(main_config.shadow[i],&shadow_parsed_size,":");
+		config_str shadow_parsed = NULL;
+		if (main_config.shadow_size){
+			shadow_parsed = yon_char_parse(main_config.shadow[i],&shadow_parsed_size,":");
+		}
 			char *groups_string="";
 			char *main_group_name="";
 			for (int j=0;j<main_config.groups_size;j++){
@@ -1229,7 +1232,7 @@ void yon_system_load(main_window *window){
 				if (atol(parsed[3])==atol(parsed_group[2])){
 					main_group_name=yon_char_new(parsed_group[0]);
 				}
-				if (strstr(parsed_group[3],shadow_parsed[0])){
+				if (shadow_parsed_size&&strstr(parsed_group[3],shadow_parsed[0])){
 					groups_string = yon_char_unite(groups_string,!yon_char_is_empty(groups_string)?",":"",parsed_group[0],NULL);
 				}
 				yon_char_parsed_free(parsed_group,parsed_gr_size);