1 files changed, 3 insertions, 1 deletions
diff --git a/release/rtool.py b/release/rtool.py
index 518257f1..04e1249d 100755
--- a/release/rtool.py
+++ b/release/rtool.py
@@ -17,6 +17,8 @@ import fnmatch
 
 # https://virtualenv.pypa.io/en/latest/userguide.html#windows-notes
 # scripts and executables on Windows go in ENV\Scripts\ instead of ENV/bin/
+import sys
+
 if platform.system() == "Windows":
     VENV_BIN = "Scripts"
 else:
@@ -195,7 +197,7 @@ def wheels():
         with chdir(DIST_DIR):
             print("Installing %s..." % project["name"])
             # lxml...
-            if os.name == "nt":
+            if platform.system() == "Windows" and sys.version_info[0] == 3:
                 subprocess.check_call([VENV_PIP, "install", "-q", "https://snapshots.mitmproxy.org/misc/lxml-3.6.0-cp35-cp35m-win32.whl"])
             subprocess.check_call([VENV_PIP, "install", "-q", wheel_name()])