diff --git a/ShareX.UploadersLib/FileUploaders/Lambda.cs b/ShareX.UploadersLib/FileUploaders/Lambda.cs
index b3a5128d6..6fa9cb8f0 100644
--- a/ShareX.UploadersLib/FileUploaders/Lambda.cs
+++ b/ShareX.UploadersLib/FileUploaders/Lambda.cs
@@ -24,6 +24,7 @@ You should have received a copy of the GNU General Public License
 #endregion License Information (GPL v3)
 
 using Newtonsoft.Json;
+using ShareX.UploadersLib.Properties;
 using System.Collections.Generic;
 using System.IO;
 
@@ -45,7 +46,7 @@ public override UploadResult Upload(Stream stream, string fileName)
         {
             if (string.IsNullOrEmpty(Config.UserAPIKey))
             {
-                Errors.Add("Missing API key. Set one in destination settings.");
+                Errors.Add(Resources.Lambda_Upload_Missing_API_key__Set_one_in_destination_settings_);
                 return null;
             }
 
diff --git a/ShareX.UploadersLib/Properties/Resources.Designer.cs b/ShareX.UploadersLib/Properties/Resources.Designer.cs
index 7fb53dd3f..8a7e638b3 100644
--- a/ShareX.UploadersLib/Properties/Resources.Designer.cs
+++ b/ShareX.UploadersLib/Properties/Resources.Designer.cs
@@ -1,7 +1,7 @@
 //------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by a tool.
-//     Runtime Version:4.0.30319.0
+//     Runtime Version:4.0.30319.34209
 //
 //     Changes to this file may cause incorrect behavior and will be lost if
 //     the code is regenerated.
@@ -421,6 +421,15 @@ internal static System.Drawing.Icon Lambda {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Missing API key. Set one in destination settings..
+        /// </summary>
+        internal static string Lambda_Upload_Missing_API_key__Set_one_in_destination_settings_ {
+            get {
+                return ResourceManager.GetString("Lambda_Upload_Missing_API_key__Set_one_in_destination_settings_", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized resource of type System.Drawing.Bitmap.
         /// </summary>
diff --git a/ShareX.UploadersLib/Properties/Resources.resx b/ShareX.UploadersLib/Properties/Resources.resx
index c74b573f5..b3992ca03 100644
--- a/ShareX.UploadersLib/Properties/Resources.resx
+++ b/ShareX.UploadersLib/Properties/Resources.resx
@@ -472,4 +472,7 @@ Created folders:</value>
   <data name="Hubic" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Favicons\hubic.ico;System.Drawing.Icon, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="Lambda_Upload_Missing_API_key__Set_one_in_destination_settings_" xml:space="preserve">
+    <value>Missing API key. Set one in destination settings.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/ShareX.UploadersLib/UploadersConfig.cs b/ShareX.UploadersLib/UploadersConfig.cs
index 132d34422..51ded86b9 100644
--- a/ShareX.UploadersLib/UploadersConfig.cs
+++ b/ShareX.UploadersLib/UploadersConfig.cs
@@ -414,6 +414,8 @@ public bool IsValid(FileDestination destination)
                     return !string.IsNullOrEmpty(OwnCloudHost) && !string.IsNullOrEmpty(OwnCloudUsername) && !string.IsNullOrEmpty(OwnCloudPassword);
                 case FileDestination.MediaFire:
                     return !string.IsNullOrEmpty(MediaFireUsername) && !string.IsNullOrEmpty(MediaFirePassword);
+                case FileDestination.Lambda:
+                    return LambdaSettings != null && !string.IsNullOrEmpty(LambdaSettings.UserAPIKey);
             }
 
             return true;