doc update
diff --git a/documentation/pyserial.rst b/documentation/pyserial.rst
index fe8bc62..87bc437 100644
--- a/documentation/pyserial.rst
+++ b/documentation/pyserial.rst
@@ -115,7 +115,7 @@
 is compatible with Python 2.0 on Windows, Linux and several un*x like systems,
 MacOSX and Jython.
 
-On windows releases older than 2.5 will depend on pywin32_ (previously known as
+On Windows releases older than 2.5 will depend on pywin32_ (previously known as
 win32all)
 
 .. _download: https://pypi.python.org/pypi/pyserial