diff --git a/src/node/db/SessionManager.js b/src/node/db/SessionManager.js
index f8000e47e..518c70c7a 100644
--- a/src/node/db/SessionManager.js
+++ b/src/node/db/SessionManager.js
@@ -353,7 +353,7 @@ function listSessionsWithDBKey (dbkey, callback)
         {
           if (err == "apierror: sessionID does not exist")
           {
-            console.warn("Found bad session " + sessionID + " in " + dbkey + ".");
+            console.warn(`Found bad session ${sessionID} in ${dbkey}`);
           }
           else if(ERR(err, callback))
           {
diff --git a/src/node/hooks/express.js b/src/node/hooks/express.js
index 48dcf56cb..e7b373805 100644
--- a/src/node/hooks/express.js
+++ b/src/node/hooks/express.js
@@ -12,15 +12,15 @@ var serverName;
 exports.createServer = function () {
   console.log("Report bugs at https://github.com/ether/etherpad-lite/issues")
 
-  serverName = "Etherpad " + settings.getGitCommit() + " (http://etherpad.org)";
+  serverName = `Etherpad ${settings.getGitCommit()} (http://etherpad.org)`;
   
-  console.log("Your Etherpad version is " + settings.getEpVersion() + " (" + settings.getGitCommit() + ")");
+  console.log(`Your Etherpad version is ${settings.getEpVersion()} (${settings.getGitCommit()})`);
 
   exports.restartServer();
 
-  console.log("You can access your Etherpad instance at http://" + settings.ip + ":" + settings.port + "/");
+  console.log(`You can access your Etherpad instance at http://${settings.ip}:${settings.port}/`);
   if(!_.isEmpty(settings.users)){
-    console.log("The plugin admin page is at http://" + settings.ip + ":" + settings.port + "/admin/plugins");
+    console.log(`The plugin admin page is at http://${settings.ip}:${settings.port}/admin/plugins`);
   }
   else{
     console.warn("Admin username and password not set in settings.json.  To access admin please uncomment and edit 'users' in settings.json");
@@ -42,9 +42,9 @@ exports.restartServer = function () {
 
   if (settings.ssl) {
 
-    console.log( "SSL -- enabled");
-    console.log( "SSL -- server key file: " + settings.ssl.key );
-    console.log( "SSL -- Certificate Authority's certificate file: " + settings.ssl.cert );
+    console.log("SSL -- enabled");
+    console.log(`SSL -- server key file: ${settings.ssl.key}`);
+    console.log(`SSL -- Certificate Authority's certificate file: ${settings.ssl.cert}`);
     
     var options = {
       key: fs.readFileSync( settings.ssl.key ),
diff --git a/src/node/utils/Abiword.js b/src/node/utils/Abiword.js
index 1d9ac5d30..2aae5a8ac 100644
--- a/src/node/utils/Abiword.js
+++ b/src/node/utils/Abiword.js
@@ -52,7 +52,7 @@ if(os.type().indexOf("Windows") > -1)
     abiword.on('exit', function (code)
     {
       if(code != 0) {
-        return callback("Abiword died with exit code " + code);
+        return callback(`Abiword died with exit code ${code}`);
       }
 
       if(stdoutBuffer != "")
@@ -91,7 +91,7 @@ else
     abiword.on('exit', function (code) 
     {
       spawnAbiword();
-      stdoutCallback("Abiword died with exit code " + code);
+      stdoutCallback(`Abiword died with exit code ${code}`);
     });
 
     //delegate the processing of stdout to a other function
diff --git a/src/node/utils/LibreOffice.js b/src/node/utils/LibreOffice.js
index 9127d18d2..6f049d224 100644
--- a/src/node/utils/LibreOffice.js
+++ b/src/node/utils/LibreOffice.js
@@ -84,7 +84,7 @@ function doConvertTask(task, callback) {
       // Throw an exception if libreoffice failed
       soffice.on('exit', function(code) {
         if (code != 0) {
-          return callback("LibreOffice died with exit code " + code + " and message: " + stdoutBuffer);
+          return callback(`LibreOffice died with exit code ${code} and message: ${stdoutBuffer}`);
         }
 
         callback();
diff --git a/src/node/utils/Settings.js b/src/node/utils/Settings.js
index 648ecbbbd..508e6148d 100644
--- a/src/node/utils/Settings.js
+++ b/src/node/utils/Settings.js
@@ -396,7 +396,7 @@ exports.reloadSettings = function reloadSettings() {
     //test if the setting start with a lowercase character
     if(i.charAt(0).search("[a-z]") !== 0)
     {
-      console.warn("Settings should start with a lowercase character: '" + i + "'");
+      console.warn(`Settings should start with a lowercase character: '${i}'`);
     }
 
     //we know this setting, so we overwrite it
@@ -412,7 +412,7 @@ exports.reloadSettings = function reloadSettings() {
     //this setting is unkown, output a warning and throw it away
     else
     {
-      console.warn("Unknown Setting: '" + i + "'. This setting doesn't exist or it was removed");
+      console.warn(`Unknown Setting: '${i}'. This setting doesn't exist or it was removed`);
     }
   }
 
@@ -422,7 +422,7 @@ exports.reloadSettings = function reloadSettings() {
     //test if the setting start with a lowercase character
     if(i.charAt(0).search("[a-z]") !== 0)
     {
-      console.warn("Settings should start with a lowercase character: '" + i + "'");
+      console.warn(`Settings should start with a lowercase character: '${i}'`);
     }
 
     //we know this setting, so we overwrite it
@@ -438,7 +438,7 @@ exports.reloadSettings = function reloadSettings() {
     //this setting is unkown, output a warning and throw it away
     else
     {
-      console.warn("Unknown Setting: '" + i + "'. This setting doesn't exist or it was removed");
+      console.warn(`Unknown Setting: '${i}'. This setting doesn't exist or it was removed`);
     }
   }