diff --git a/app/helpers/kmyblue_capabilities_helper.rb b/app/helpers/kmyblue_capabilities_helper.rb
index ce29e7ff37..ef6799faeb 100644
--- a/app/helpers/kmyblue_capabilities_helper.rb
+++ b/app/helpers/kmyblue_capabilities_helper.rb
@@ -21,7 +21,7 @@ module KmyblueCapabilitiesHelper
       kmyblue_list_notification
     )
 
-    capabilities << :profile_search unless Chewy.enabled?
+    capabilities << :full_text_search if Chewy.enabled?
     if Setting.enable_emoji_reaction
       capabilities << :emoji_reaction
       capabilities << :enable_wide_emoji_reaction
diff --git a/app/javascript/mastodon/features/about/index.jsx b/app/javascript/mastodon/features/about/index.jsx
index 7603eb8ddd..5c24292442 100644
--- a/app/javascript/mastodon/features/about/index.jsx
+++ b/app/javascript/mastodon/features/about/index.jsx
@@ -160,7 +160,8 @@ class About extends PureComponent {
     const isPublicUnlistedVisibility = fedibirdCapabilities.includes('kmyblue_visibility_public_unlisted');
     const isEmojiReaction = fedibirdCapabilities.includes('emoji_reaction');
     const isLocalTimeline = !fedibirdCapabilities.includes('timeline_no_local');
-    const isFullTextSearch = !fedibirdCapabilities.includes('profile_search');
+
+    const isFullTextSearch = server.getIn(['configuration', 'search', 'enabled']);
 
     return (
       <Column bindToDocument={!multiColumn} label={intl.formatMessage(messages.title)}>
diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index bda7c4ec30..565e5c2e2b 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -98,6 +98,11 @@ class REST::InstanceSerializer < ActiveModel::Serializer
       reactions: {
         max_reactions: EmojiReaction::EMOJI_REACTION_PER_ACCOUNT_LIMIT,
       },
+
+      # https://github.com/mastodon/mastodon/pull/27009
+      search: {
+        enabled: Chewy.enabled?,
+      },
     }
   end
 
diff --git a/app/serializers/rest/v1/instance_serializer.rb b/app/serializers/rest/v1/instance_serializer.rb
index d0473f5f97..29a314557a 100644
--- a/app/serializers/rest/v1/instance_serializer.rb
+++ b/app/serializers/rest/v1/instance_serializer.rb
@@ -100,6 +100,11 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
       reactions: {
         max_reactions: EmojiReaction::EMOJI_REACTION_PER_ACCOUNT_LIMIT,
       },
+
+      # https://github.com/mastodon/mastodon/pull/27009
+      search: {
+        enabled: Chewy.enabled?,
+      },
     }
   end