diff --git a/Tools/buildbot/build.bat b/Tools/buildbot/build.bat
index 1debfc19d79..511fa1d107e 100644
--- a/Tools/buildbot/build.bat
+++ b/Tools/buildbot/build.bat
@@ -10,7 +10,7 @@ call "%~dp0clean%PLAT%.bat"
 @rem a new version of an external library, especially Tcl/Tk):
 @rem 1) uncomment the following line:
 
-@rem    call "%~dp0..\..\PCbuild\get_externals.bat" --clean-only
+call "%~dp0..\..\PCbuild\get_externals.bat" --clean-only
 
 @rem 2) commit and push
 @rem 3) wait for all Windows bots to start a build with that changeset