diff --git a/80-Deploy_Netdata.sh b/80-Deploy_Netdata.sh
index 981a701..501d670 100644
--- a/80-Deploy_Netdata.sh
+++ b/80-Deploy_Netdata.sh
@@ -8,7 +8,7 @@ source "$SCRIPTDIR/common/load-defaults.sh"
 
 printf "$COL_LIGHT_BLUE" "* Checking if system already has netdata installed"
 install_netdata=0
-if [[ ! service_exists netdata ]]
+if ! service_exists netdata
 then
   printf "$COL_YELLOW" "** $HOSTNAME appears to not have the netdata service"
   install_netdata=$netdata_install