diff --git a/roles/linux_preparation/files/update-recore-revision b/roles/linux_preparation/files/update-recore-revision
index 2e3dc741..121a0c5a 100755
--- a/roles/linux_preparation/files/update-recore-revision
+++ b/roles/linux_preparation/files/update-recore-revision
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [[ ! `lscpu | grep -q Cortex-A53` ]]; then
+if ! lscpu | grep -q Cortex-A53; then
     exit 0
 fi