diff --git a/requirements-ultimaker.txt b/requirements-ultimaker.txt
index ae158516f2..8a412d8596 100644
--- a/requirements-ultimaker.txt
+++ b/requirements-ultimaker.txt
@@ -1 +1 @@
-git+https://github.com/ultimaker/libcharon@master#egg=charon
+git+https://github.com/ultimaker/libcharon@master/s-line#egg=charon