haha whew

code/game/objects/items/robot/robot_upgrades.dm

@@ -545,7 +545,7 @@
 			to_chat(usr, "<span class='notice'>This unit already has an expand module installed!</span>")
 			return FALSE
 
-		R.notransform = TRUE
+		R.mob_transforming = TRUE
 		var/prev_locked_down = R.locked_down
 		R.SetLockdown(1)
 		R.anchored = TRUE
@@ -559,7 +559,7 @@
 		if(!prev_locked_down)
 			R.SetLockdown(0)
 		R.anchored = FALSE
-		R.notransform = FALSE
+		R.mob_transforming = FALSE
 		R.resize = 2
 		R.hasExpanded = TRUE
 		R.update_transform()