diff --git a/packages/nc-gui/lang/sk.json b/packages/nc-gui/lang/sk.json
index 33846c7b85..1e44b4a008 100644
--- a/packages/nc-gui/lang/sk.json
+++ b/packages/nc-gui/lang/sk.json
@@ -235,6 +235,7 @@
     "action": "Akcia",
     "actions": "Činnosti",
     "operation": "Operácia",
+    "operationSub": "Sub Operation",
     "operationType": "Typ operácie",
     "operationSubType": "Podtyp operácie",
     "description": "Popis",