diff --git a/config.yaml b/config.yaml
index 1f049ed..de01783 100644
--- a/config.yaml
+++ b/config.yaml
@@ -39,5 +39,6 @@ default_user_preferences:
 #  host: 192.0.2.39
 #  port: 8080
 
+modified_source_code_url: "https://git.m724.eu/id.420129"
 banner: '<small style="opacity: 0.5;"><a href="/about">Instance info here. Please read.</a>&nbsp;&nbsp;&nbsp;&nbsp;<a href="/about/problems.html">Having problems? Here are some solutions.</a></small>'