diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index 0ca7e9d15..9a06f61eb 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -4001,7 +4001,7 @@ int DLevelScript::RunScript ()
 
 	while (state == SCRIPT_Running)
 	{
-		if (++runaway > 500000)
+		if (++runaway > 2000000)
 		{
 			Printf ("Runaway %s terminated\n", ScriptPresentation(script).GetChars());
 			state = SCRIPT_PleaseRemove;