diff --git a/devlib/bin/scripts/shutils.in b/devlib/bin/scripts/shutils.in
index a58783b..708dade 100755
--- a/devlib/bin/scripts/shutils.in
+++ b/devlib/bin/scripts/shutils.in
@@ -124,14 +124,14 @@ cgroups_run_into() {
 
 	  # Check if the required CGroup exists
 	  $FIND $CGMOUNT -type d -mindepth 1 | \
-	  $GREP "$CGP" &>/dev/null
+	  $GREP -E "^$CGMOUNT/devlib_cgh[0-9]{1,2}$CGP" &>/dev/null
 	  if [ $? -ne 0 ]; then
 		echo "ERROR: could not find any $CGP cgroup under $CGMOUNT"
 		exit 1
 	  fi
 
 	  $FIND $CGMOUNT -type d -mindepth 1 | \
-	  $GREP -e "^$CGMOUNT$CGP$" | \
+	  $GREP -E "^$CGMOUNT/devlib_cgh[0-9]{1,2}$CGP$" | \
 	  while read CGPATH; do
 		  # Move this shell into that control group
 		  echo $$ > $CGPATH/cgroup.procs