diff --git a/v1/pcs/media-list.yaml b/v1/pcs/media-list.yaml
index 317449f42..ef5c08564 100644
--- a/v1/pcs/media-list.yaml
+++ b/v1/pcs/media-list.yaml
@@ -17,6 +17,7 @@ paths:
         options:
           redirect_cache_control: '{{options.response_cache_control}}'
       - path: lib/security_response_header_filter.js
+      - path: lib/language_variants_filter.js
     get: &media_list_title_get_spec
       tags:
         - Page content
diff --git a/v1/pcs/media.yaml b/v1/pcs/media.yaml
index 75ac86731..7b8e417d4 100644
--- a/v1/pcs/media.yaml
+++ b/v1/pcs/media.yaml
@@ -88,6 +88,7 @@ paths:
              method: get
              headers:
                cache-control: '{{cache-control}}'
+               accept-language: '{{accept-language}}'
              uri: '{{options.host}}/{domain}/v1/page/media/{title}'
            return:
              status: 200
diff --git a/v1/pcs/metadata.yaml b/v1/pcs/metadata.yaml
index 96691e547..23c086ffc 100644
--- a/v1/pcs/metadata.yaml
+++ b/v1/pcs/metadata.yaml
@@ -17,6 +17,7 @@ paths:
         options:
           redirect_cache_control: '{{options.response_cache_control}}'
       - path: lib/security_response_header_filter.js
+      - path: lib/language_variants_filter.js
     get: &metadata_title_get_spec
       tags:
         - Page content
diff --git a/v1/pcs/mobile-html.yaml b/v1/pcs/mobile-html.yaml
index c19d8e079..2c1a1aa70 100644
--- a/v1/pcs/mobile-html.yaml
+++ b/v1/pcs/mobile-html.yaml
@@ -19,6 +19,7 @@ paths:
       - path: lib/security_response_header_filter.js
         options:
           mobile_html: true
+      - path: lib/language_variants_filter.js
     get: &mobile-html_title_revision_get_spec
       tags:
         - Page content
diff --git a/v1/pcs/references.yaml b/v1/pcs/references.yaml
index 2e079e923..2a7296567 100644
--- a/v1/pcs/references.yaml
+++ b/v1/pcs/references.yaml
@@ -17,6 +17,7 @@ paths:
         options:
           redirect_cache_control: '{{options.response_cache_control}}'
       - path: lib/security_response_header_filter.js
+      - path: lib/language_variants_filter.js
     get: &references_title_get_spec
       tags:
         - Page content