diff --git a/TShockAPI/Commands.cs b/TShockAPI/Commands.cs
index facddcdc..2fc9e3ba 100755
--- a/TShockAPI/Commands.cs
+++ b/TShockAPI/Commands.cs
@@ -453,6 +453,10 @@ namespace TShockAPI
 			});
 			#endregion
 			#region World Commands
+			add(new Command(Permissions.toggleexpert, ToggleExpert, "expert")
+			{
+					HelpText = "Toggles expert mode."
+			});
 			add(new Command(Permissions.antibuild, ToggleAntiBuild, "antibuild")
 			{
 				HelpText = "Toggles build protection."
@@ -1965,6 +1969,13 @@ namespace TShockAPI
 			}
 		}
 
+		private static void ToggleExpert(CommandArgs args)
+		{
+			Main.expertMode = !Main.expertMode;
+			TSPlayer.All.SendData(PacketTypes.WorldInfo);
+			args.Player.SendSuccessMessage("Expert mode is now {0}.", Main.expertMode ? "on" : "off");
+		}
+
 		private static void Hardmode(CommandArgs args)
 		{
 			if (Main.hardMode)
diff --git a/TShockAPI/Permissions.cs b/TShockAPI/Permissions.cs
index 897d28f7..369042a3 100644
--- a/TShockAPI/Permissions.cs
+++ b/TShockAPI/Permissions.cs
@@ -254,6 +254,9 @@ namespace TShockAPI
 
 		// tshock.world nodes
 
+		[Description("User can change expert state.")]
+		public static readonly string toggleexpert = "tshock.world.toggleexpert";
+
 		[Description("Allows you to edit the spawn.")]
 		public static readonly string editspawn = "tshock.world.editspawn";