diff --git a/.github/actions/build-server/action.yml b/.github/actions/build-server/action.yml
index cf8057c70..7423b8c4a 100644
--- a/.github/actions/build-server/action.yml
+++ b/.github/actions/build-server/action.yml
@@ -1,4 +1,7 @@
 inputs:
+  os:
+    description: "One of the supported platforms: windows"
+    required: true
   arch:
     description: "The architecture to build for: x64, arm64"
     required: true