diff --git a/BizHawk.MultiClient/LuaImplementation.cs b/BizHawk.MultiClient/LuaImplementation.cs
index bcbc67aa6b..0d6667b9ee 100644
--- a/BizHawk.MultiClient/LuaImplementation.cs
+++ b/BizHawk.MultiClient/LuaImplementation.cs
@@ -354,6 +354,7 @@ namespace BizHawk.MultiClient
 		                                      		"drawPie",
 		                                      		"drawIcon",
 		                                      		"drawImage",
+													"addmessage",
 		                                      	};
 
 		public static string[] EmuFunctions = new string[]
@@ -646,6 +647,11 @@ namespace BizHawk.MultiClient
 			Global.OSD.ClearGUIText();
 		}
 
+		public void gui_addmessage(object luaStr)
+		{
+			Global.OSD.AddMessage(luaStr.ToString());
+		}
+
 		public DisplaySurface luaSurface;
 
 		/// <summary>