diff --git a/GstService/src/index.ts b/GstService/src/index.ts
index 6be5e2a..fd8dee3 100644
--- a/GstService/src/index.ts
+++ b/GstService/src/index.ts
@@ -328,7 +328,7 @@ app.get("/captcha", async (req, res) => {
  */
 app.get("/captcha/:sessionId", async (req, res) => {
   const { sessionId }  = req.params;
-  const { reqId }      = req as TrackedReq;
+  const { reqId }      = req as unknown as TrackedReq;
   const t = Date.now();
 
   const session = getSession(sessionId);