diff --git a/plugins/frontend/backstage-plugin-argo-cd/src/api/index.ts b/plugins/frontend/backstage-plugin-argo-cd/src/api/index.ts
index 7132b24c3..7421ae83a 100644
--- a/plugins/frontend/backstage-plugin-argo-cd/src/api/index.ts
+++ b/plugins/frontend/backstage-plugin-argo-cd/src/api/index.ts
@@ -202,7 +202,7 @@ export class ArgoCDApiClient implements ArgoCDApi {
           options.instance
         }/applications/name/${encodeURIComponent(
           options.appName as string,
-        )}?${query}`,
+        )}${query}`,
         argoCDAppDetails,
       );
     }