diff --git a/check_update.sh b/check_update.sh
index 27a7ca8..d75bed2 100755
--- a/check_update.sh
+++ b/check_update.sh
@@ -5,7 +5,7 @@ set -e
 SCRIPTDIR=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)
 
 # dummy toolchain variables
-PREFERED_PROVIDER[linux]="linux"
+PREFERED_PROVIDER[linux]="linux-lts"
 export LAYERCONF=""
 
 # utilities