diff --git a/packages/smooth_app/lib/l10n/app_tn.arb b/packages/smooth_app/lib/l10n/app_tn.arb
index f35c1275e84..bcfa1f0af3a 100644
--- a/packages/smooth_app/lib/l10n/app_tn.arb
+++ b/packages/smooth_app/lib/l10n/app_tn.arb
@@ -14,6 +14,10 @@
     "@reason": {},
     "okay": "Okay",
     "@okay": {},
+    "validate": "Validate",
+    "@validate": {
+        "description": "Button label: Validate the input"
+    },
     "create": "Create",
     "@create": {
         "description": "An action to create"