diff --git a/pwa/src/apiService/resources/availableFilters.ts b/pwa/src/apiService/resources/availableFilters.ts
index 05b33510..0a488ffe 100644
--- a/pwa/src/apiService/resources/availableFilters.ts
+++ b/pwa/src/apiService/resources/availableFilters.ts
@@ -14,7 +14,7 @@ export default class AvailableFilters {
     let endpoint = "/openWOO?_queries[]=Categorie";
 
     if (window.sessionStorage.getItem("OIDN_NUMBER")) {
-      endpoint += `&oidn=${window.sessionStorage.getItem("OIDN_NUMBER")}`;
+      endpoint += `&behandelendBestuursorgaan.oidn=${window.sessionStorage.getItem("OIDN_NUMBER")}`;
     }
 
     const { data } = await this._send(this._instance, "GET", endpoint);
diff --git a/pwa/src/apiService/resources/openWoo.ts b/pwa/src/apiService/resources/openWoo.ts
index 277bc315..f9ee2e18 100644
--- a/pwa/src/apiService/resources/openWoo.ts
+++ b/pwa/src/apiService/resources/openWoo.ts
@@ -20,7 +20,7 @@ export default class OpenWoo {
     )}&_order[Publicatiedatum]=desc&_limit=${limit}&_page=${currentPage}`;
 
     if (window.sessionStorage.getItem("OIDN_NUMBER")) {
-      endpoint += `&oidn=${window.sessionStorage.getItem("OIDN_NUMBER")}`;
+      endpoint += `&behandelendBestuursorgaan.oidn=${window.sessionStorage.getItem("OIDN_NUMBER")}`;
     }
 
     const { data } = await this._send(this._instance, "GET", endpoint);