diff --git a/code/game/gamemodes/wizard/spellbook.dm b/code/game/gamemodes/wizard/spellbook.dm
index 2731af6a3f3..c39231bf86e 100644
--- a/code/game/gamemodes/wizard/spellbook.dm
+++ b/code/game/gamemodes/wizard/spellbook.dm
@@ -526,7 +526,7 @@
 				var/result = E.Refund(H,src)
 				if(result > 0)
 					if(!isnull(E.limit))
-+						E.limit += result
+						E.limit += result
 					uses += result
 		else if(href_list["page"])
 			tab = sanitize(href_list["page"])