diff --git a/README.md b/README.md
index 77e9d09..5a1619f 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ records and provide tips for improving it.
 
 ## Tools
 
-- PuQI
+### PuQI
 
 PuQI (class `MDPuqi`) generates a score determining the quality of object metadata
 based on e.g. counting linked entries, checking the length of an object's description,
@@ -42,6 +42,12 @@ such a creator can be identified among the object's creators, the returned warni
 contain an additional notice about the creator being represented by one along with tips
 on how to get in contact with the copyright collective.
 
+### Additional Tools
+
+#### Minimaldatensatz: Check for Availability of Fields Required and Recommended by the AG Minimaldatensatz
+
+See <http://minimaldatensatz.de>
+
 ## Publications
 
 ### PuQI