diff --git a/lib/robot.js b/lib/robot.js
index 587faa5..df96513 100644
--- a/lib/robot.js
+++ b/lib/robot.js
@@ -147,8 +147,6 @@ Robot.prototype.initRobot = function(opts) {
 //
 // Returns initialized connections
 Robot.prototype.initConnections = function(opts) {
-  var str;
-
   this.log("info", "Initializing connections.");
 
   if (opts.connection == null && opts.connections == null) {
@@ -156,11 +154,7 @@ Robot.prototype.initConnections = function(opts) {
   }
 
   if (opts.connection) {
-    str = "Specifying a single connection with the 'connection' key ";
-    str += "is deprecated. It will be removed in 1.0.0.";
-
-    this.log("warn", str);
-
+    this.deprecationWarning("connection");
     this.connection(opts.connection.name, opts.connection);
     return this.connections;
   }
@@ -231,8 +225,6 @@ Robot.prototype.device = function(name, device) {
 //
 // Returns initialized devices
 Robot.prototype.initDevices = function(opts) {
-  var str;
-
   this.log("info", "Initializing devices.");
 
   if (opts.device == null && opts.devices == null) {
@@ -245,10 +237,7 @@ Robot.prototype.initDevices = function(opts) {
   }
 
   if (opts.device) {
-    str = "Specifying a single device with the 'device' key is deprecated. ";
-    str += "It will be removed in 1.0.0.";
-
-    this.log("warn", str);
+    this.deprecationWarning("device");
     this.device(opts.device.name, opts.device);
     return this.devices;
   }
@@ -439,3 +428,14 @@ Robot.prototype.performArraySetup = function(things, typeOfThing, arrayName) {
     this[typeOfThing](name, t);
   }, this);
 };
+
+Robot.prototype.deprecationWarning = function(kind) {
+  var msg = "Specifying a single ";
+  msg += kind;
+  msg += " with the '";
+  msg += kind;
+  msg += "' key ";
+  msg += "is deprecated. It will be removed in 1.0.0.";
+
+  this.log("warn", msg);
+};