diff --git a/tests/install.sh b/tests/install.sh
index 42ef7650..fb1e8266 100755
--- a/tests/install.sh
+++ b/tests/install.sh
@@ -4,7 +4,7 @@ pip install psutil netifaces
 if python -c 'import sys; sys.exit(1 * (sys.version_info[0] != 2))' ; then
 	# Python 2
 	if python -c 'import platform, sys; sys.exit(1 - (platform.python_implementation() == "CPython"))' ; then
-		# PyPy
+		# CPython
 		pip install mercurial
 		pip install --allow-external bzr --allow-unverified bzr bzr
 	fi