diff --git a/bypy/windows/__main__.py b/bypy/windows/__main__.py
index 1122a3a0b6..ba6aaad858 100644
--- a/bypy/windows/__main__.py
+++ b/bypy/windows/__main__.py
@@ -319,6 +319,7 @@ def build_portable_installer(env):
         'Ole32.lib', 'Shlwapi.lib', 'Kernel32.lib', 'Psapi.lib']
     run(*cmd)
     os.remove(zf)
+    os.remove(manifest)
 
 
 def build_portable(env):