diff --git a/.github/workflows/ubuntu-build.yml b/.github/workflows/ubuntu-build.yml
index 9bc079fb..b48a883b 100644
--- a/.github/workflows/ubuntu-build.yml
+++ b/.github/workflows/ubuntu-build.yml
@@ -20,8 +20,8 @@ jobs:
         run: |
           git submodule init
           git submodule update
-          #cd thirdparty/glew
-          #make extensions
+          cd thirdparty/glew
+          make extensions
       - name: build
         run: |
           mkdir build