diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 07847e78..5352f601 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,7 +27,7 @@ jobs:
         run: pip install scons
 
       - name: Install svn
-        run: choco install svn
+        run: choco install svn zip
 
       - name: Setup GtkRadiant
         run: scons target=setup