diff --git a/Tests/README b/Tests/README
index f409218ff..fefa3f773 100644
--- a/Tests/README
+++ b/Tests/README
@@ -1,7 +1,7 @@
 setup
 -----
 
-(you need "python-xml" in order to run the scripts)
+(you need "python-xml" and "python-m2crypto" in order to run the scripts)
 
 1) copy testconfig.py.in to testconfig.py (make sure to never EVER add it to monotone)
 2) edit testconfig.py to suit your environment