diff --git a/applications/nfc/nfc_worker.h b/applications/nfc/nfc_worker.h
index d5ebc1be..a0a5ae83 100755
--- a/applications/nfc/nfc_worker.h
+++ b/applications/nfc/nfc_worker.h
@@ -25,6 +25,10 @@ typedef enum {
 } NfcWorkerState;
 
 typedef enum {
+    // Reserve first 50 events for application events
+    NfcWorkerEventReserved = 50,
+
+    // Nfc worker common events
     NfcWorkerEventSuccess,
     NfcWorkerEventFail,
     NfcWorkerEventNoCardDetected,