diff --git a/Tools/msi/make_zip.py b/Tools/msi/make_zip.py
index f2e1c4ebe11..521ba93ba54 100644
--- a/Tools/msi/make_zip.py
+++ b/Tools/msi/make_zip.py
@@ -25,6 +25,7 @@ def is_not_debug(p):
         '_testbuffer.pyd',
         '_testcapi.pyd',
         '_testimportmultiple.pyd',
+        '_testmultiphase.pyd',
         'xxlimited.pyd',
     }