diff --git a/python/python-simpy/README b/python/python-simpy/README
index 795a9e832e..fc68efa74f 100644
--- a/python/python-simpy/README
+++ b/python/python-simpy/README
@@ -15,4 +15,4 @@ The distribution contains in-depth documentation, tutorials, and a large number
 of simulation models.
 
 To build documentation, pass DOCS=yes to the slackbuild. Requires the optional
-dependency sphinx.
+dependency Sphinx.