diff --git a/PocketSharp/Components/Account.cs b/PocketSharp/Components/Account.cs
index 226bed4..98394ea 100644
--- a/PocketSharp/Components/Account.cs
+++ b/PocketSharp/Components/Account.cs
@@ -60,7 +60,7 @@ namespace PocketSharp
         RequestCode = requestCode;
       }
 
-      return new Uri(String.Format(authentificationUri, RequestCode, CallbackUri));
+      return new Uri(String.Format(authentificationUri, RequestCode, CallbackUri, isMobileClient ? "1" : "0"));
     }
 
 
@@ -122,7 +122,7 @@ namespace PocketSharp
         RequestCode = requestCode;
       }
 
-      return new Uri(String.Format("{0}&force=signup", String.Format(authentificationUri, RequestCode, CallbackUri)));
+      return new Uri(String.Format("{0}&force=signup", String.Format(authentificationUri, RequestCode, CallbackUri, isMobileClient ? "1" : "0")));
     }
   }
 }
diff --git a/PocketSharp/PocketClient.cs b/PocketSharp/PocketClient.cs
index f479134..78f9b98 100644
--- a/PocketSharp/PocketClient.cs
+++ b/PocketSharp/PocketClient.cs
@@ -39,7 +39,12 @@ namespace PocketSharp
     /// <summary>
     /// The authentification URL
     /// </summary>
-    protected string authentificationUri = "https://getpocket.com/auth/authorize?request_token={0}&redirect_uri={1}&mobile=1";
+    protected string authentificationUri = "https://getpocket.com/auth/authorize?request_token={0}&redirect_uri={1}&mobile={2}";
+
+    /// <summary>
+    /// Indicates, whether this client is used for mobile or desktop
+    /// </summary>
+    protected bool isMobileClient = true;
 
     /// <summary>
     /// callback URLi for API calls
@@ -91,11 +96,20 @@ namespace PocketSharp
     /// <param name="callbackUri">The callback URL is called by Pocket after authentication</param>
     /// <param name="handler">The HttpMessage handler.</param>
     /// <param name="timeout">Request timeout (in seconds).</param>
-    public PocketClient(string consumerKey, string accessCode = null, string callbackUri = null, HttpMessageHandler handler = null, int? timeout = null)
+    /// <param name="isMobileClient">Indicates, whether this client is used for mobile or desktop</param>
+    public PocketClient(
+      string consumerKey,
+      string accessCode = null,
+      string callbackUri = null,
+      HttpMessageHandler handler = null,
+      int? timeout = null,
+      bool isMobileClient = true)
     {
       // assign public properties
       ConsumerKey = consumerKey;
 
+      this.isMobileClient = isMobileClient;
+
       // assign access code if submitted
       if (accessCode != null)
       {
diff --git a/PocketSharp/Properties/AssemblyInfo.cs b/PocketSharp/Properties/AssemblyInfo.cs
index 8ee8f1e..7eefc62 100644
--- a/PocketSharp/Properties/AssemblyInfo.cs
+++ b/PocketSharp/Properties/AssemblyInfo.cs
@@ -22,5 +22,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("3.0.2")]
-[assembly: AssemblyFileVersion("3.0.2")]
\ No newline at end of file
+[assembly: AssemblyVersion("3.1.0")]
+[assembly: AssemblyFileVersion("3.1.0")]
\ No newline at end of file