diff --git a/.github/workflows/storybook.yml b/.github/workflows/storybook.yml
index 19a03e5de..6cb1b3499 100644
--- a/.github/workflows/storybook.yml
+++ b/.github/workflows/storybook.yml
@@ -86,7 +86,11 @@ jobs:
         if [ "$CHROMATIC_PARAMETER" = " --skip" ]; then
           echo "skip=true" >> $GITHUB_OUTPUT
         fi
-        pnpm --filter frontend chromatic --exit-once-uploaded -d storybook-static --branch-name ${{ github.event.pull_request.head.ref }} $(echo "$CHROMATIC_PARAMETER")
+        BRANCH="${{ github.event.pull_request.head.user.login }}:${{ github.event.pull_request.head.ref }}"
+        if [ "$BRANCH" = "misskey-dev:${{ github.event.pull_request.head.ref }}" ]; then
+          BRANCH="${{ github.event.pull_request.head.ref }}"
+        fi
+        pnpm --filter frontend chromatic --exit-once-uploaded -d storybook-static --branch-name $BRANCH $(echo "$CHROMATIC_PARAMETER")
       env:
         CHROMATIC_PROJECT_TOKEN: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}
     - name: Notify that Chromatic detects changes