diff --git a/Lib/sysconfig.py b/Lib/sysconfig.py
index 77402d8ab7e..3146f305105 100644
--- a/Lib/sysconfig.py
+++ b/Lib/sysconfig.py
@@ -639,7 +639,6 @@ def get_platform():
                     m = re.search(
                             r'<key>ProductUserVisibleVersion</key>\s*' +
                             r'<string>(.*?)</string>', f.read())
-                    f.close()
                     if m is not None:
                         macrelease = '.'.join(m.group(1).split('.')[:2])
                     # else: fall back to the default behaviour