diff --git a/code/websites/pokedex.online/src/utilities/gamemaster-utils.js b/code/websites/pokedex.online/src/utilities/gamemaster-utils.js
index 5f2ea54..f9e0802 100644
--- a/code/websites/pokedex.online/src/utilities/gamemaster-utils.js
+++ b/code/websites/pokedex.online/src/utilities/gamemaster-utils.js
@@ -50,7 +50,7 @@ export function breakUpGamemaster(gamemaster) {
         // Add to pokemon (filtered - first occurrence OR regional forms)
         // Check if this is a regional form by looking at the form string
         const form = pokemonSettings?.form;
-        const isRegionalForm = form
+        const isRegionalForm = form && typeof form === 'string'
           ? regionCheck.includes(form.split('_')[1]?.toLowerCase())
           : false;