diff --git a/.gitea/workflows/dev.yaml b/.gitea/workflows/dev.yaml
index fe6fe33..0105955 100644
--- a/.gitea/workflows/dev.yaml
+++ b/.gitea/workflows/dev.yaml
@@ -22,7 +22,7 @@ jobs:
       - name: Clean Branch Name
         id: clean_branch_name
         run: |
-          CLEANED_BRANCH_NAME=$(echo "${GITHUB_REF_NAME}" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9_.-' '-')
+          CLEANED_BRANCH_NAME=$(echo "${GITHUB_REF_NAME}" | tr '[:upper:]' '[:lower:]' | tr '/_' '-')
           echo "CLEAN_BRANCH_NAME=${CLEANED_BRANCH_NAME}" >> $GITHUB_ENV
       - name: Kaniko build
         uses: aevea/action-kaniko@v0.12.0