diff --git a/appimage/AppImageBuilder-aarch64.yml b/appimage/AppImageBuilder-aarch64.yml
index ee37baf1c..f3cd8f568 100644
--- a/appimage/AppImageBuilder-aarch64.yml
+++ b/appimage/AppImageBuilder-aarch64.yml
@@ -63,6 +63,7 @@ AppDir:
   runtime:
     env:
       GIO_MODULE_DIR: $APPDIR/usr/lib/x86_64-linux-gnu/gio/modules/
+      GDK_BACKEND: x11
   test:
     fedora-30:
       image: appimagecrafters/tests-env:fedora-30
diff --git a/appimage/AppImageBuilder-x86_64.yml b/appimage/AppImageBuilder-x86_64.yml
index ae95fd2ce..59dd5164f 100644
--- a/appimage/AppImageBuilder-x86_64.yml
+++ b/appimage/AppImageBuilder-x86_64.yml
@@ -66,6 +66,7 @@ AppDir:
   runtime:
     env:
       GIO_MODULE_DIR: $APPDIR/usr/lib/x86_64-linux-gnu/gio/modules/
+      GDK_BACKEND: x11
   test:
     fedora-30:
       image: appimagecrafters/tests-env:fedora-30