diff --git a/build-aux/org.gnome.Calendar.json b/build-aux/org.gnome.Calendar.json
index edf5f7f1..9c252c6f 100644
--- a/build-aux/org.gnome.Calendar.json
+++ b/build-aux/org.gnome.Calendar.json
@@ -168,8 +168,8 @@
             "buildsystem" : "meson",
             "sources" : [
                 {
-                    "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/gnome-calendar.git"
+                    "type" : "dir",
+                    "path" : "../"
                 }
             ],
             "config-opts" : [