diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4ebe56a..50e6a92 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,6 +16,9 @@ on:
     types: [opened, synchronize, reopened]
     paths: ['**/CMakeLists.txt', '**/Makefile', '**/*.h', '**/*.hpp', '**/*.c', '**/*.cpp', '**/*.cu']
 
+env:
+  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+
 jobs:
   ubuntu-latest-cmake:
     runs-on: ubuntu-latest
@@ -195,4 +198,4 @@ jobs:
                   data: await fs.readFileSync(`./artifact/${file}`)
                 });
               }
-            }
\ No newline at end of file
+            }