diff --git a/install.sh b/install.sh
index dcf6763..7a817fc 100755
--- a/install.sh
+++ b/install.sh
@@ -14,15 +14,15 @@ fi
 # source vars
 source vars
 
-if [ $user == "" ] ; then
+if [[ $user == "" ]] ; then
     echo -e "User missing from vars."
     exit 1
 fi
-if [ $projectname == "" ] ; then
+if [[ $projectname == "" ]] ; then
     echo -e "Project Name missing from vars."
     exit 1
 fi
-if [ $hostname == "" ] ; then
+if [[ $hostname == "" ]] ; then
     echo -e "Hostname missing from vars."
     exit 1
 fi