diff --git a/.github/workflows/appimage.yml b/.github/workflows/appimage.yml
index bfce79242..51c3272ef 100644
--- a/.github/workflows/appimage.yml
+++ b/.github/workflows/appimage.yml
@@ -622,7 +622,6 @@ jobs:
 
           ./configure.sh \
           -GNinja \
-          -DCMAKE_CXX_FLAGS="-DDESKTOP_APP_GLIBMM_BACKPORTS" \
           -DCMAKE_INSTALL_PREFIX=/usr \
           -DTDESKTOP_API_TEST=ON \
           -DDESKTOP_APP_USE_PACKAGED_LAZY=ON \