diff --git a/.github/workflows/build-docker.yml b/.github/workflows/build-docker.yml
index 839868d..e4efda1 100644
--- a/.github/workflows/build-docker.yml
+++ b/.github/workflows/build-docker.yml
@@ -15,11 +15,11 @@ on:
   workflow_dispatch:
 
 env:
-  REGISTRY_URL: "docker.io"   # docker.io or other registry URL, DOCKER_REGISTRY_USER/DOCKER_REGISTRY_PASSWORD to be set in CI env.
+  REGISTRY_URL: "docker.io"   # docker.io or other registry URL, DOCKER_REGISTRY_USERNAME/DOCKER_REGISTRY_PASSWORD to be set in CI env.
   BUILDKIT_PROGRESS: "plain"  # Full logs for CI build.
 
-  # DOCKER_REGISTRY_USER and DOCKER_REGISTRY_PASSWORD is required for docker image push, they should be set in CI secrets.
-  DOCKER_REGISTRY_USER: ${{ secrets.DOCKER_REGISTRY_USER }}
+  # DOCKER_REGISTRY_USERNAME and DOCKER_REGISTRY_PASSWORD is required for docker image push, they should be set in CI secrets.
+  DOCKER_REGISTRY_USERNAME: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
   DOCKER_REGISTRY_PASSWORD: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
   
   # used to sync image to mirror registry
diff --git a/tool.sh b/tool.sh
index e9dbebd..27967ec 100755
--- a/tool.sh
+++ b/tool.sh
@@ -58,7 +58,7 @@ push_image() {
     KEYWORD="${1:-second}";
     docker image prune --force && docker images | sort;
     IMAGES=$(docker images | grep "${KEYWORD}" | awk '{print $1 ":" $2}') ;
-    echo "$DOCKER_REGISTRY_PASSWORD" | docker login "${REGISTRY_URL}" -u "$DOCKER_REGISTRY_USER" --password-stdin ;
+    echo "$DOCKER_REGISTRY_PASSWORD" | docker login "${REGISTRY_URL}" -u "$DOCKER_REGISTRY_USERNAME" --password-stdin ;
     for IMG in $(echo "${IMAGES}" | tr " " "\n") ;
     do
       docker push "${IMG}";