diff --git a/build-aux/flatpak/org.gnome.ImageViewer.Devel.json b/build-aux/flatpak/org.gnome.ImageViewer.Devel.json
index 588a8a1..8621141 100644
--- a/build-aux/flatpak/org.gnome.ImageViewer.Devel.json
+++ b/build-aux/flatpak/org.gnome.ImageViewer.Devel.json
@@ -44,7 +44,8 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.gnome.org/exalm/libadwaita.git"
+                    "url" : "https://gitlab.gnome.org/exalm/libadwaita.git",
+                    "branch" : "main"
                 }
             ]
         },