diff --git a/BizHawk.Client.Common/lua/LuaLibraryBase.cs b/BizHawk.Client.Common/lua/LuaLibraryBase.cs
index e1be7fbded..e9f26f3d91 100644
--- a/BizHawk.Client.Common/lua/LuaLibraryBase.cs
+++ b/BizHawk.Client.Common/lua/LuaLibraryBase.cs
@@ -35,6 +35,11 @@ namespace BizHawk.Client.Common
 			return (uint)(double)luaArg;
 		}
 
+		protected static long LuaLong(object luaArg)
+		{
+			return (long)(double)luaArg;
+		}	
+
 		/// <summary>
 		/// LuaInterface requires the exact match of parameter count, except optional parameters. 
 		/// So, if you want to support variable arguments, declare them as optional and pass