diff --git a/README b/README
index 8395429..1213190 100644
--- a/README
+++ b/README
@@ -5,4 +5,4 @@ Library to create simple diagrams. Work in progress.
 
 A diagram can contain multiple curves.
 
-See src/lib/aqdiagram/libtest.c.
+See https://gitea.aqbanking.de/martin/aqdiagram/src/branch/master/src/lib/aqdiagram/libtest.c