--- a/browser/config/mozconfigs/win32/beta
+++ b/browser/config/mozconfigs/win32/beta
@@ -1,8 +1,6 @@
 . "$topsrcdir/browser/config/mozconfigs/common"
 
-# for pgo
 mk_add_options MOZ_PGO=1
-mk_add_options PROFILE_GEN_SCRIPT='$(MAKE) -C $(MOZ_OBJDIR) pgo-profile-run'
 
 ac_add_options --enable-update-channel=${MOZ_UPDATE_CHANNEL}
 ac_add_options --enable-update-packaging