diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 38bd87d6..3060d6ab 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -206,38 +206,38 @@ jobs:
 
     # ----------------------------------------------------------------
 
-#    - name: clone xo-callback
-#      uses: actions/checkout@v3
-#      with:
-#        repository: Rconybea/xo-callback
-#        path: repo/xo-callback
-#
-#    - name: build xo-callback
-#      run: |
-#        XONAME=xo-callback
-#        XOSRC=repo/${XONAME}
-#        BUILDDIR=${{github.workspace}}/build_${XONAME}
-#        PREFIX=${{github.workspace}}/local
-#
-#        echo "::group::repo dir tree"
-#        tree -L 2 repo
-#        echo "::endgroup"
-#
-#        echo "::group::configure ${XONAME}"
-#        cmake -B ${BUILDDIR} -DCMAKE_INSTALL_PREFIX=${PREFIX} ${XOSRC}
-#        echo "::endgroup"
-#
-#        echo "::group::compile ${XONAME}"
-#        cmake --build ${BUILDDIR} --config ${{env.BUILD_TYPE}} -j
-#        echo "::endgroup"
-#
-#        echo "::group::local install ${XONAME}"
-#        cmake --install ${BUILDDIR}
-#        echo "::endgroup"
-#
-#        echo "::group::local dir tree"
-#        tree -L 3 ${PREFIX}
-#        echo "::endgroup"
+    - name: clone xo-callback
+      uses: actions/checkout@v3
+      with:
+        repository: Rconybea/xo-callback
+        path: repo/xo-callback
+
+    - name: build xo-callback
+      run: |
+        XONAME=xo-callback
+        XOSRC=repo/${XONAME}
+        BUILDDIR=${{github.workspace}}/build_${XONAME}
+        PREFIX=${{github.workspace}}/local
+
+        echo "::group::repo dir tree"
+        tree -L 2 repo
+        echo "::endgroup"
+
+        echo "::group::configure ${XONAME}"
+        cmake -B ${BUILDDIR} -DCMAKE_INSTALL_PREFIX=${PREFIX} ${XOSRC}
+        echo "::endgroup"
+
+        echo "::group::compile ${XONAME}"
+        cmake --build ${BUILDDIR} --config ${{env.BUILD_TYPE}} -j
+        echo "::endgroup"
+
+        echo "::group::local install ${XONAME}"
+        cmake --install ${BUILDDIR}
+        echo "::endgroup"
+
+        echo "::group::local dir tree"
+        tree -L 3 ${PREFIX}
+        echo "::endgroup"
 
     # ----------------------------------------------------------------