diff --git a/netwerk/cookie/nsCookieService.h b/netwerk/cookie/nsCookieService.h
index 80408ed7c5..85443483a2 100644
--- a/netwerk/cookie/nsCookieService.h
+++ b/netwerk/cookie/nsCookieService.h
@@ -387,7 +387,6 @@ class nsCookieService final : public nsICookieService
     mozilla::Monitor              mMonitor;
     mozilla::Atomic<bool>         mInitializedDBStates;
     mozilla::Atomic<bool>         mInitializedDBConn;
-    bool                          mAccumulatedWaitTelemetry;
     nsTArray<CookieDomainTuple>   mReadArray;
 
     // friends!