diff --git a/wxPython/b.bat b/wxPython/b.bat
index de64c6a6d7..2997f346f8 100755
--- a/wxPython/b.bat
+++ b/wxPython/b.bat
@@ -1,2 +1,3 @@
 @echo off
-call bash.bat b.win32 %*
+
+call bash.bat -c "b.win32 %*"