diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 9e5c662..17eb6a0 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -41,6 +41,11 @@ on:
         required: false
         default: "[]"
         type: string
+      file:
+        description: "Path to the Dockerfile. (default `Dockerfile`)"
+        required: false
+        default: "Dockerfile"
+        type: string
 
 jobs:
   docker:
@@ -95,6 +100,7 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           platforms: ${{ matrix.platform }}
           build-args: ${{ inputs.build_args }}
+          file: ${{ inputs.file }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
           outputs: type=image,name=${{ inputs.registry }}/${{ inputs.image_name }},push-by-digest=${{ inputs.push }},name-canonical=true,push=${{ inputs.push }}