diff --git a/src/codePush.ts b/src/codePush.ts
index 113beb31..822ddae0 100644
--- a/src/codePush.ts
+++ b/src/codePush.ts
@@ -314,7 +314,7 @@ class CodePush implements CodePushCapacitorPlugin {
         */
         const syncCallbackAndUpdateSyncInProgress: Callback<SyncStatus> = (err: Error | null, result: SyncStatus | null): void => {
           if (err) {
-            syncOptions.onSyncError && syncOptions.onSyncError(err);
+            syncOptions?.onSyncError && syncOptions.onSyncError(err);
             CodePush.SyncInProgress = false;
             reject(err);
           } else {