diff --git a/manifest.json b/manifest.json
index dd94f16..6002faa 100644
--- a/manifest.json
+++ b/manifest.json
@@ -3,7 +3,7 @@
     "id": "Roland",
     "name": "Roland",
     "prefix": "Roland",
-    "version": "2.8.15",
+    "version": "2.8.16",
     "badge_colour": "8BE9FD",
     "display_name": "Roland",
     "main_file": "src/main.lua",
diff --git a/src/charm.lua b/src/charm.lua
index 9b8c355..83cb811 100644
--- a/src/charm.lua
+++ b/src/charm.lua
@@ -129,7 +129,7 @@ charm {
     equip = function(_, card)
         SMODS.change_booster_limit(card.ability.extra.mod)
     end,
-    unequip = function(card)
+    unequip = function(_, card)
         SMODS.change_booster_limit(-card.ability.extra.mod)
     end,
 }