diff --git a/.install/sys_checkOS.sh b/.install/sys_checkOS.sh
index 4b6078c..c515523 100644
--- a/.install/sys_checkOS.sh
+++ b/.install/sys_checkOS.sh
@@ -12,9 +12,10 @@ export myProfile="$ASTRONODE/profile"
 
 ## Check system kind
 [[ $(uname -a | grep arm) ]] && export ARM=yes || unset ARM
-if [[ $(grep -E 'stretch|18.|19.' /etc/os-release) ]]; then export OS=stretch;
-elif [[ $(grep buster /etc/os-release) ]]; then export OS=buster;
-else echo "${c_red}OS not supported$c_"; exit 1; fi
+if [[ $(grep -E '19.3|19.4' /etc/os-release) ]]; then export OS=buster;
+elif [[ $(grep -E 'stretch|18.|19.' /etc/os-release) ]]; then export OS=stretch;
+else export OS=buster;
+fi
 
 [[ -e $myProfile ]] && rm $myProfile
 touch $myProfile