diff --git a/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/FetchedCategoryRules.kt b/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/FetchedCategoryRules.kt
index bdab7d32..373af347 100644
--- a/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/FetchedCategoryRules.kt
+++ b/src/test/kotlin/com/ecwid/apiclient/v3/rule/nullablepropertyrules/FetchedCategoryRules.kt
@@ -22,13 +22,13 @@ val fetchedCategoryNullablePropertyRules: List<NullablePropertyRule<*, *>> = lis
 	IgnoreNullable(FetchedCategory::productIds),
 	IgnoreNullable(FetchedCategory::thumbnailUrl),
 	IgnoreNullable(FetchedCategory::url),
+	IgnoreNullable(FetchedCategory::customSlug),
 	AllowNullable(FetchedCategory::productCountWithoutSubcategories),
 	AllowNullable(FetchedCategory::seoTitle),
 	AllowNullable(FetchedCategory::seoTitleTranslated),
 	AllowNullable(FetchedCategory::seoDescription),
 	AllowNullable(FetchedCategory::seoDescriptionTranslated),
 	AllowNullable(FetchedCategory::alt),
-	AllowNullable(FetchedCategory::customSlug),
 	AllowNullable(FetchedAlt::main),
 	AllowNullable(FetchedAlt::translated),
 )