diff --git a/org.gnome.Geary.json b/org.gnome.Geary.json
index c6a625e7..290c2bcb 100644
--- a/org.gnome.Geary.json
+++ b/org.gnome.Geary.json
@@ -197,8 +197,9 @@
             "builddir": true,
             "sources": [
                 {
-                    "type": "dir",
-                    "path": "."
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/geary.git",
+                    "branch": "mainline"
                 }
             ]
         }