diff --git a/team-validator.js b/team-validator.js
index b65d6f8682..537baf2566 100644
--- a/team-validator.js
+++ b/team-validator.js
@@ -731,7 +731,7 @@ Validator = (function () {
 			} else if (template.prevo) {
 				template = tools.getTemplate(template.prevo);
 				if (template.gen > Math.max(2, tools.gen)) template = null;
-				if (!template.abilities['H']) isHidden = false;
+				if (template && !template.abilities['H']) isHidden = false;
 			} else if (template.baseSpecies !== template.species && template.baseSpecies !== 'Kyurem' && template.baseSpecies !== 'Pikachu') {
 				template = tools.getTemplate(template.baseSpecies);
 			} else {