diff --git a/src/freedombone-app-xmpp b/src/freedombone-app-xmpp
index 93f02309..71358c94 100755
--- a/src/freedombone-app-xmpp
+++ b/src/freedombone-app-xmpp
@@ -644,7 +644,7 @@ function remove_xmpp {
 
     function_check remove_onion_service
     remove_onion_service xmpp 5222 5223 5269
-    sed -i '/HiddenServiceVersion 2/d' $ONION_SERVICES_FILE
+    sed -i '/HiddenServiceVersion 2/d' "$ONION_SERVICES_FILE"
 
     apt-mark -q unhold prosody
     apt-get -yq remove --purge prosody
@@ -1131,11 +1131,11 @@ function install_xmpp {
         echo $'No Tor installation found. xmpp onion site cannot be configured.'
         exit 877367
     fi
-    if ! grep -q "hidden_service_xmpp" $ONION_SERVICES_FILE; then
+    if ! grep -q "hidden_service_xmpp" "$ONION_SERVICES_FILE"; then
         { echo 'HiddenServiceDir /var/lib/tor/hidden_service_xmpp/';
           echo 'HiddenServiceVersion 2';
           echo "HiddenServicePort 5222 127.0.0.1:5222";
-          echo "HiddenServicePort 5269 127.0.0.1:5269"; } >> $ONION_SERVICES_FILE
+          echo "HiddenServicePort 5269 127.0.0.1:5269"; } >> "$ONION_SERVICES_FILE"
         echo $'Added onion site for xmpp chat'
     fi