diff --git a/back/services/dependence.ts b/back/services/dependence.ts
index 1cb7e559..eac054be 100644
--- a/back/services/dependence.ts
+++ b/back/services/dependence.ts
@@ -107,7 +107,7 @@ export default class DependenceService {
     query: any = {},
   ): Promise<Dependence[]> {
     let condition = query;
-    if (DependenceTypes[type]) {
+    if (type && DependenceTypes[type] !== undefined) {
       condition.type = DependenceTypes[type];
     }
     if (status) {