diff --git a/wadsrc/static/zscript/base.txt b/wadsrc/static/zscript/base.txt
index 0aba717cb1f..d8fed2f28ae 100644
--- a/wadsrc/static/zscript/base.txt
+++ b/wadsrc/static/zscript/base.txt
@@ -353,6 +353,7 @@ class Thinker : Object native
 		STAT_AUTODECAL,							// A decal that can be automatically deleted
 		STAT_CORPSEPOINTER,						// An entry in Hexen's corpse queue
 		STAT_TRAVELLING,						// An actor temporarily travelling to a new map
+		STAT_STATIC,
 
 		// Thinkers that do think
 		STAT_FIRST_THINKING=32,