diff --git a/resources-domain/packages/resources-search-config/resourceIndexDocumentMappings.ts b/resources-domain/packages/resources-search-config/resourceIndexDocumentMappings.ts
index 4369e210c..663150564 100644
--- a/resources-domain/packages/resources-search-config/resourceIndexDocumentMappings.ts
+++ b/resources-domain/packages/resources-search-config/resourceIndexDocumentMappings.ts
@@ -152,6 +152,7 @@ export const resourceIndexDocumentMappings: ResourceIndexDocumentMappings = {
     languages: {
       type: 'keyword',
       isArrayField: true,
+      attributeKeyPattern: /^languages\/.*$/,
       indexValueGenerator: ({ value, info }: ReferrableResourceAttribute<string>) =>
         `${info?.language ?? ''} ${value}`,
     },