diff --git a/Tools/msi/merge.py b/Tools/msi/merge.py
index 412356765da..3202f98b2ab 100644
--- a/Tools/msi/merge.py
+++ b/Tools/msi/merge.py
@@ -9,7 +9,7 @@ msi = None
 if len(sys.argv)==2:
     msi = sys.argv[1]
 if Win64:
-    modules = ["Microsoft_VC90_CRT_x86.msm", "policy_8_0_Microsoft_VC80_CRT_x86_x64.msm"]
+    modules = ["Microsoft_VC90_CRT_x86_x64.msm", "policy_8_0_Microsoft_VC80_CRT_x86_x64.msm"]
     if not msi: msi = "python-%s.amd64.msi" % full_current_version
 else:
     modules = ["Microsoft_VC90_CRT_x86.msm","policy_8_0_Microsoft_VC80_CRT_x86.msm"]