diff --git a/jpp/README.md b/jpp/README.md
index 36b6d2c4e43e527cdce8dd9b660a80df759f882b..c051a035b100e3d26be3ca5d73802d4f61bf840a 100644
--- a/jpp/README.md
+++ b/jpp/README.md
@@ -2,3 +2,5 @@
 
 The following source files were taken from Jpp version v14.1.0-40-ge37bef90a
 and are used for testing and as fallback if no Jpp environment is loaded.
+
+See https://git.km3net.de/common/jpp