diff --git a/isphonehere.sh b/isphonehere.sh
index dc85237..47729e7 100755
--- a/isphonehere.sh
+++ b/isphonehere.sh
@@ -76,7 +76,7 @@ while true; do
   if [ -n "$found_mac" ]; then
     echo "phone is in da house"
 
-    if [ $currentstate != $zm_here_state ]; then
+    if [ "$currentstate" != "$zm_here_state" ]; then
       echo "setting state to $zm_here_state"
       sethere
     fi;