diff --git a/pythonnet/setup.py b/pythonnet/setup.py
index d1d66e06c..0c01b9e96 100644
--- a/pythonnet/setup.py
+++ b/pythonnet/setup.py
@@ -24,7 +24,7 @@
 
     cc = msvc9compiler.MSVCCompiler()
     cc.initialize()
-    _xbuild = cc.find_exe("msbuild.exe")
+    _xbuild = "\"%s\"" % cc.find_exe("msbuild.exe")
     _defines_sep = ";"
     _config = "%sWin" % CONFIG
     _npython_exe = "nPython.exe"