diff --git a/.forgejo/workflows/build-images.yaml b/.forgejo/workflows/build-images.yaml
index e93122e..24014d6 100644
--- a/.forgejo/workflows/build-images.yaml
+++ b/.forgejo/workflows/build-images.yaml
@@ -7,9 +7,11 @@ on:
   workflow_dispatch:
     inputs:
       dockerfile:
+        type: string
         description: "Optional Dockerfile path to build. Example: 'apps/ci-os/Dockerfile'"
         required: false
       image:
+        type: string
         description: "Optional container image name. Example: 'my-org/my-image:latest'"
         required: false