diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 59edbad..e0f84a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,5 +53,5 @@ jobs:
           docker buildx build \
             --platform linux/amd64,linux/arm64,linux/arm/v7 \
             --build-arg VERSION=${{matrix.version}} \
-            --tag ${{ secrets.DOCKER_USERNAME }}/bitcoind:v$VERSION \
+            --tag ${{ secrets.DOCKER_USERNAME }}/bitcoind:v${{matrix.version}} \
             --push .