diff --git a/INSTALL b/INSTALL
index 43b7fc1c08aa035e25064d492d6732881c345907..1b1bdd2190aef3a6df1ce3959a1a765eda7c1e62 100644
--- a/INSTALL
+++ b/INSTALL
@@ -75,7 +75,7 @@ For CentOS/Fedora (likely incomplete list, but goes a long way):
 
 
 
-NOTE (any OS): For manual builds, the most prominent dependencies you likely need to build are casacore (+ friends) and AOFlagger:
+NOTE (any OS): For manual builds, the most prominent dependencies you may need to install are:
 
 	casacore:                  https://github.com/casacore/casacore
 	python-casacore ('pyrap'): https://github.com/casacore/python-casacore
@@ -89,6 +89,8 @@ NOTE (any OS): For manual builds, the most prominent dependencies you likely nee
 
 	PyBDSF (blob detector & source finder): https://github.com/lofar-astron/PyBDSF
 
+        pymonetdb (if using GSM inside LOFAR network): pip install pymonetdb  # useful option: --target=/your/path/libdir/pythonversion/site-packages
+
 
 Instructions for Manual Build from Source
 -----------------------------------------