diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index aebfcde..b4f6941 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,10 @@ on:
       tag:
         description: 'Tag to build'
         required: true
-        type: string
+        type: choice
+        default: '0.5.0'
+        options:
+        - '0.5.0'
 
 permissions:
   packages: write
@@ -24,6 +27,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+    - uses: actions/checkout@v4
+
     - name: Clone source repo
       run: |-
         git clone https://github.com/twitter/twemproxy.git
@@ -33,13 +38,14 @@ jobs:
     - name: Login to GHCR
       uses: docker/login-action@v2
       with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+        registry: ${{ env.REGISTRY }}
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
 
     - name: Build docker image
-      working-directory: twemproxy
-      run: make -f ../Makefile build IMAGE_NAME=${{ env.IMAGE }} IMAGE_TAG=${{ inputs.tag }}
+      working-directory: ./twemproxy
+      run: ls -la; pwd; make -f ../Makefile build IMAGE_NAME=${{ env.IMAGE }} IMAGE_TAG=${{ inputs.tag }}
 
     - name: Push docker image
+      working-directory: ./twemproxy
       run: make -f ../Makefile push IMAGE_NAME=${{ env.IMAGE }} IMAGE_TAG=${{ inputs.tag }}