diff --git a/plugins/kubernetes-backend/src/service/KubernetesProxy.ts b/plugins/kubernetes-backend/src/service/KubernetesProxy.ts
index 21c381b73e..b0f2e2759b 100644
--- a/plugins/kubernetes-backend/src/service/KubernetesProxy.ts
+++ b/plugins/kubernetes-backend/src/service/KubernetesProxy.ts
@@ -143,7 +143,7 @@ export class KubernetesProxy {
           const cluster = await this.getClusterForRequest(req);
           const url = new URL(cluster.url);
           return path.replace(
-            new RegExp(`^${originalReq.baseUrl}`),
+            new RegExp(`^${req.baseUrl}`),
             url.pathname || '',
           );
         },