diff -r 722813575d5f -r d0ec164c8f20 pidgin/win32/nsis/generate_gtk_zip.sh
--- a/pidgin/win32/nsis/generate_gtk_zip.sh	Tue Sep 11 23:18:23 2012 -0400
+++ b/pidgin/win32/nsis/generate_gtk_zip.sh	Tue Sep 18 13:54:15 2012 -0400
@@ -85,7 +85,9 @@
 done
 
 #Generate zip file to be included in installer
-zip -9 -r ../gtk-runtime-$BUNDLE_VERSION.zip Gtk
+ZIPFILE=../gtk-runtime-$BUNDLE_VERSION.zip
+rm -f $ZIPFILE
+zip -9 -r $ZIPFILE Gtk
 
 exit 0