diff --git a/packages/python/web/TwistedCore/build b/packages/python/web/TwistedCore/build
index 1fdc9ad51c..59716faeb3 100755
--- a/packages/python/web/TwistedCore/build
+++ b/packages/python/web/TwistedCore/build
@@ -12,4 +12,3 @@ $PYTHON setup.py install -O1 --skip-build --root ./.install --prefix /usr
 
 find .install -name "*.py" -exec rm -rf "{}" ";"
 find .install -name "*.pyo" -exec rm -rf "{}" ";"
-rm -rf .install/usr/bin