diff --git a/scripts/pgit.sh b/scripts/pgit.sh
index 183559f4..14c5cb51 100644
--- a/scripts/pgit.sh
+++ b/scripts/pgit.sh
@@ -180,12 +180,7 @@ clone()
 				}
 				run_git -C $p fetch --prune --recurse-submodules=on-demand $remotename $fromref
 				if [ "$toref" ]; then
-					curref=`git -C $p branch --show-current`
-					if [ "$curref" = "$toref" ]; then
-						run_git -C $p pull --recurse-submodules=on-demand $remotename $fromref
-					else
-						run_git -C $p fetch --recurse-submodules=on-demand $remotename $fromref:$toref
-					fi
+					run_git -C $p merge --ff-only $remotename/$fromref $toref
 				fi
 			else
 				# set -x