diff --git a/BizHawk.Client.EmuHawk/tools/Lua/Libraries/EmuLuaLibrary.cs b/BizHawk.Client.EmuHawk/tools/Lua/Libraries/EmuLuaLibrary.cs
index c88e2dd838..79027dfe20 100644
--- a/BizHawk.Client.EmuHawk/tools/Lua/Libraries/EmuLuaLibrary.cs
+++ b/BizHawk.Client.EmuHawk/tools/Lua/Libraries/EmuLuaLibrary.cs
@@ -170,6 +170,7 @@ namespace BizHawk.Client.EmuHawk
 
 		public override void Close()
 		{
+			RegisteredFunctions.Clear();
 			FormsLibrary.DestroyAll();
 			_lua.Close();
 			_lua = new Lua();