diff --git a/RELEASE.md b/RELEASE.md
index ffd0543b..00de1e59 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -22,6 +22,7 @@
 - Fixed error in Cannibal's role weapon HUD when weapon was selected from last round (Thanks Stig!)
 - Fixed detective hats not hiding when the owning player was eaten by the Cannibal
 - Fixed Loot Goblin not being able to drop some weapons that were droppable
+- Fixed errors in shop with weapons that don't use the TTT base weapon (like the holdable cat)
 - Ported "Add check for checking weapon GetHeadshotMultiplier"
 
 ### Developer
diff --git a/gamemodes/terrortown/gamemode/cl_equip.lua b/gamemodes/terrortown/gamemode/cl_equip.lua
index b3303705..7581e78b 100644
--- a/gamemodes/terrortown/gamemode/cl_equip.lua
+++ b/gamemodes/terrortown/gamemode/cl_equip.lua
@@ -674,7 +674,7 @@ local function GetOwnedEquipment()
     -- Determine if we already have equipment
     local owned_ids = {}
     for _, wep in ipairs(LocalPlayer():GetWeapons()) do
-        if IsValid(wep) and wep:IsEquipment() then
+        if IsValid(wep) and wep.IsEquipment and wep:IsEquipment() then
             TableInsert(owned_ids, wep:GetClass())
         end
     end
diff --git a/gamemodes/terrortown/gamemode/player_ext_shd.lua b/gamemodes/terrortown/gamemode/player_ext_shd.lua
index 58240c09..412959dc 100644
--- a/gamemodes/terrortown/gamemode/player_ext_shd.lua
+++ b/gamemodes/terrortown/gamemode/player_ext_shd.lua
@@ -327,7 +327,7 @@ function plymeta:GetBaseKarma() return self:GetNWFloat("karma", 1000) end
 
 function plymeta:HasEquipmentWeapon()
     for _, wep in ipairs(self:GetWeapons()) do
-        if IsValid(wep) and wep:IsEquipment() then
+        if IsValid(wep) and wep.IsEquipment and wep:IsEquipment() then
             return true
         end
     end