diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index 5c4a94e..69c0cfd 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -21,8 +21,8 @@ jobs:
       - uses: actions/checkout@v4
       - name: Generate Lexer and Parser
         run: |
-          wget -q -t 3 https://www.antlr.org/download/antlr-4.13.1-complete.jar -O antlr.jar
           cd ${{ github.workspace }}/src/grammar
+          wget -q -t 3 https://www.antlr.org/download/antlr-4.13.1-complete.jar -O antlr.jar
           java -jar antlr.jar -Dlanguage=Cpp -o ./ ProtoLexer.g4
           java -jar antlr.jar -Dlanguage=Cpp -o ./ ProtoParser.g4
       - name: Configure CRPC