diff --git a/OpenRA.Game/Scripting/ScriptContext.cs b/OpenRA.Game/Scripting/ScriptContext.cs
index 9757c1bee5..fbbd30a86a 100644
--- a/OpenRA.Game/Scripting/ScriptContext.cs
+++ b/OpenRA.Game/Scripting/ScriptContext.cs
@@ -160,7 +160,7 @@ namespace OpenRA.Scripting
 				.ToArray();
 
 			runtime.Globals["GameDir"] = Platform.GameDir;
-			runtime.DoBuffer(File.Open(Platform.ResolvePath(".", "lua", "scriptwrapper.lua"), FileMode.Open).ReadAllText(), "scriptwrapper.lua").Dispose();
+			runtime.DoBuffer(File.Open(Platform.ResolvePath(".", "lua", "scriptwrapper.lua"), FileMode.Open, FileAccess.Read).ReadAllText(), "scriptwrapper.lua").Dispose();
 			tick = (LuaFunction)runtime.Globals["Tick"];
 
 			// Register globals