diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index 556592991..807827b95 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -5040,7 +5040,7 @@ int DLevelScript::RunScript ()
 				}
 				else if (activator)
 				{
-					work += RUNTIME_TYPE(activator)->TypeName.GetChars();
+					work += activator->GetTag();
 				}
 				else
 				{