diff --git a/pyuavcan/pyuavcan/__init__.py b/pyuavcan/pyuavcan/__init__.py
index 918993ba70..b17719cb39 100644
--- a/pyuavcan/pyuavcan/__init__.py
+++ b/pyuavcan/pyuavcan/__init__.py
@@ -4,6 +4,7 @@
 
 '''
 Python UAVCAN package.
+Supported Python versions: 3.2+, 2.7.
 Currently it implements only a DSDL parser (refer to the submodule 'dsdl').
 '''