diff --git a/dom/serviceworkers/ServiceWorkerScriptCache.h b/dom/serviceworkers/ServiceWorkerScriptCache.h
index a2d50c1184f6..e626b7415d0d 100644
--- a/dom/serviceworkers/ServiceWorkerScriptCache.h
+++ b/dom/serviceworkers/ServiceWorkerScriptCache.h
@@ -45,8 +45,7 @@ class CompareCallback {
 
 nsresult Compare(ServiceWorkerRegistrationInfo* aRegistration,
                  nsIPrincipal* aPrincipal, const nsAString& aCacheName,
-                 const nsAString& aURL, CompareCallback* aCallback,
-                 nsILoadGroup* aLoadGroup);
+                 const nsAString& aURL, CompareCallback* aCallback);
 
 }  // namespace serviceWorkerScriptCache