diff --git a/roles/zeitbild_backend/defaults/main.json b/roles/zeitbild_backend/defaults/main.json
index 81f59ee..23da760 100644
--- a/roles/zeitbild_backend/defaults/main.json
+++ b/roles/zeitbild_backend/defaults/main.json
@@ -1,7 +1,8 @@
 {
 	"var_zeitbild_backend_directory": "/opt/zeitbild",
 	"var_zeitbild_backend_user": "zeitbild",
-	"var_zeitbild_backend_git_reference": "master",
+	"var_zeitbild_backend_git_repository_url": "https://forgejo.linke.sx/zeitbild/backend",
+	"var_zeitbild_backend_git_reference": "main",
 	"var_zeitbild_backend_verbosity": "notice",
 	"var_zeitbild_backend_address": "::",
 	"var_zeitbild_backend_port": 7845,
diff --git a/roles/zeitbild_backend/tasks/main.json b/roles/zeitbild_backend/tasks/main.json
index 6fa418c..7d7e693 100644
--- a/roles/zeitbild_backend/tasks/main.json
+++ b/roles/zeitbild_backend/tasks/main.json
@@ -26,7 +26,7 @@
 		"become": true,
 		"become_user": "{{var_zeitbild_backend_user}}",
 		"ansible.builtin.git": {
-			"repo": "https://forgejo.linke.sx/zeitbild/backend",
+			"repo": "{{var_zeitbild_backend_git_repository_url}}",
 			"version": "{{var_zeitbild_backend_git_reference}}",
 			"dest": "/tmp/zeitbild-backend-repo"
 		}
diff --git a/roles/zeitbild_backend/vardef.json b/roles/zeitbild_backend/vardef.json
index 32ab0f7..db7ab95 100644
--- a/roles/zeitbild_backend/vardef.json
+++ b/roles/zeitbild_backend/vardef.json
@@ -7,6 +7,10 @@
 		"type": "string",
 		"mandatory": false
 	},
+	"git_repository_url": {
+		"type": "string",
+		"mandatory": false
+	},
 	"git_reference": {
 		"type": "string",
 		"mandatory": false