diff --git a/.gitea/workflows/dart-ci.yml b/.gitea/workflows/dart-ci.yml
index 5da5c0e..beee86f 100644
--- a/.gitea/workflows/dart-ci.yml
+++ b/.gitea/workflows/dart-ci.yml
@@ -31,5 +31,8 @@ jobs:
       - name: Run tests
         run: dart test
 
+      - name: Prepare build directory
+        run: mkdir -p build
+
       - name: Build executable
         run: dart compile exe bin/server.dart -o build/loongyan
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