diff --git a/internal/service/wiki/get_all_pages_test.go b/internal/service/wiki/get_all_pages_test.go
index 458f820d213ec9e1bcddc7f9c6f199b9a5570559..86d7ba6be33ccd999a2bc8f47d9994e4eae9839b 100644
--- a/internal/service/wiki/get_all_pages_test.go
+++ b/internal/service/wiki/get_all_pages_test.go
@@ -214,7 +214,7 @@ func createTestWikiPages(t *testing.T, client gitalypb.WikiServiceClient, wikiRe
 		UrlPath:    "Page-1",
 		Path:       []byte("Page-1.md"),
 		Name:       []byte(page1Name),
-		RawData:    mockPageContent,
+		RawData:    nil,
 		Historical: false,
 	}
 	expectedPage2 := &gitalypb.WikiPage{
@@ -234,7 +234,7 @@ func createTestWikiPages(t *testing.T, client gitalypb.WikiServiceClient, wikiRe
 		UrlPath:    "Page-3",
 		Path:       []byte("Page-3.md"),
 		Name:       []byte(page3Name),
-		RawData:    mockPageContent,
+		RawData:    nil,
 		Historical: false,
 	}
 
diff --git a/ruby/lib/gitaly_server/wiki_service.rb b/ruby/lib/gitaly_server/wiki_service.rb
index 00ae83e981891ad855bff4e43fa0e194a7c8f4c9..1e1523e8022475c2f2a79625f65866b0c3a17ff6 100644
--- a/ruby/lib/gitaly_server/wiki_service.rb
+++ b/ruby/lib/gitaly_server/wiki_service.rb
@@ -77,11 +77,13 @@ module GitalyServer
         ).each do |page|
           y.yield Gitaly::WikiGetAllPagesResponse.new(page: build_gitaly_wiki_page(page))
 
-          io = StringIO.new(page.text_data)
-          while chunk = io.read(Gitlab.config.git.write_buffer_size)
-            gitaly_wiki_page = Gitaly::WikiPage.new(raw_data: chunk)
+          if page.text_data
+            io = StringIO.new(page.text_data)
+            while chunk = io.read(Gitlab.config.git.write_buffer_size)
+              gitaly_wiki_page = Gitaly::WikiPage.new(raw_data: chunk)
 
-            y.yield Gitaly::WikiGetAllPagesResponse.new(page: gitaly_wiki_page)
+              y.yield Gitaly::WikiGetAllPagesResponse.new(page: gitaly_wiki_page)
+            end
           end
 
           y.yield Gitaly::WikiGetAllPagesResponse.new(end_of_page: true)
diff --git a/ruby/lib/gitlab/git/wiki.rb b/ruby/lib/gitlab/git/wiki.rb
index bb31492926378f8e666b07a31b23532b5f03125e..396cafefb4b4a04a04c486faf21b79aca0d8176f 100644
--- a/ruby/lib/gitlab/git/wiki.rb
+++ b/ruby/lib/gitlab/git/wiki.rb
@@ -85,8 +85,8 @@ module Gitlab
 
       private
 
-      def new_page(gollum_page)
-        Gitlab::Git::WikiPage.new(gollum_page, new_version(gollum_page, gollum_page.version.id))
+      def new_page(gollum_page, with_raw_data: true)
+        Gitlab::Git::WikiPage.new(gollum_page, new_version(gollum_page, gollum_page.version.id), with_raw_data: with_raw_data)
       end
 
       def new_version(gollum_page, commit_id)
@@ -195,7 +195,7 @@ module Gitlab
         gollum_wiki.pages(
           limit: limit, sort: sort, direction_desc: direction_desc
         ).map do |gollum_page|
-          new_page(gollum_page)
+          new_page(gollum_page, with_raw_data: false)
         end
       end
     end
diff --git a/ruby/lib/gitlab/git/wiki_page.rb b/ruby/lib/gitlab/git/wiki_page.rb
index 3fbdf0ffeaf344a56ac37fa68d424e0b1610ecec..d206a4c66f44e01a32cdc8361083f77b32761083 100644
--- a/ruby/lib/gitlab/git/wiki_page.rb
+++ b/ruby/lib/gitlab/git/wiki_page.rb
@@ -3,14 +3,14 @@ module Gitlab
     class WikiPage
       attr_reader :url_path, :title, :format, :path, :version, :raw_data, :name, :historical
 
-      def initialize(gollum_page, version)
+      def initialize(gollum_page, version, with_raw_data: true)
         @gollum_page = gollum_page
 
         @url_path = gollum_page.url_path
         @title = gollum_page.title
         @format = gollum_page.format
         @path = gollum_page.path
-        @raw_data = gollum_page.raw_data
+        @raw_data = gollum_page.raw_data if with_raw_data
         @name = gollum_page.name
         @historical = gollum_page.historical?