diff --git a/lib/exporter.rb b/lib/exporter.rb
index 0a22a334..999b510d 100644
--- a/lib/exporter.rb
+++ b/lib/exporter.rb
@@ -11,7 +11,7 @@ class Exporter
     @user = user
     @obj = {}
     @export_dirname = Dir.mktmpdir("rs-export-")
-    @export_filename = "#{File.basename(@export_dirname)}.tar.gz"
+    @export_filename = "#{File.basename(@export_dirname)}"
   end
 
   def export
@@ -133,8 +133,8 @@ class Exporter
   end
 
   def publish
-    `tar czvf #{Rails.root.join "public", "export", @export_filename} -C /tmp/rs_export #{@export_dirname}`
-    url = "#{APP_CONFIG['https'] ? 'https' : 'http'}://#{APP_CONFIG['hostname']}/export/#{@export_filename}"
+    `tar czvf #{Rails.root.join "public", "export", "#{@export_filename}.tar.gz"} -C /tmp/rs_export #{@export_dirname}`
+    url = "#{APP_CONFIG['https'] ? 'https' : 'http'}://#{APP_CONFIG['hostname']}/export/#{@export_filename}.tar.gz"
     @user.export_processing = false
     @user.export_url = url
     @user.export_created_at = Time.now.utc
diff --git a/spec/lib/exporter_spec.rb b/spec/lib/exporter_spec.rb
index d15051c0..fb8bc0a2 100644
--- a/spec/lib/exporter_spec.rb
+++ b/spec/lib/exporter_spec.rb
@@ -313,8 +313,8 @@ RSpec.describe Exporter do
     it "publishes an archive" do
       Timecop.freeze do
         expect { subject }.to change { user.export_processing }.from(true).to(false)
-        expect(File.exist?("#{fake_rails_root}/public/export/#{name}")).to eq(true)
-        expect(user.export_url).to eq("https://example.com/export/#{name}")
+        expect(File.exist?("#{fake_rails_root}/public/export/#{name}.tar.gz")).to eq(true)
+        expect(user.export_url).to eq("https://example.com/export/#{name}.tar.gz")
         expect(user.export_created_at).to eq(Time.now.utc)
         expect(user).to be_persisted
       end