diff --git a/lib/carrierwave/storage/fog.rb b/lib/carrierwave/storage/fog.rb
index 76532b781..8bc04ae93 100644
--- a/lib/carrierwave/storage/fog.rb
+++ b/lib/carrierwave/storage/fog.rb
@@ -196,7 +196,7 @@ def attributes
         # [NilClass] no authenticated url available
         #
         def authenticated_url(options = {})
-          if ['AWS', 'Google', 'Rackspace', 'OpenStack', 'AzureRM', 'Aliyun'].include?(@uploader.fog_credentials[:provider])
+          if ['AWS', 'Google', 'Rackspace', 'OpenStack', 'AzureRM', 'Aliyun', 'backblaze'].include?(@uploader.fog_credentials[:provider])
             # avoid a get by using local references
             local_directory = connection.directories.new(:key => @uploader.fog_directory)
             local_file = local_directory.files.new(:key => path)
diff --git a/spec/storage/fog_helper.rb b/spec/storage/fog_helper.rb
index 3b271fd26..3a3622aa7 100644
--- a/spec/storage/fog_helper.rb
+++ b/spec/storage/fog_helper.rb
@@ -483,7 +483,7 @@ def check_file
           end
 
           it "should have an authenticated_url" do
-            if ['AWS', 'Rackspace', 'Google', 'OpenStack', 'AzureRM', 'Aliyun'].include?(@provider)
+            if ['AWS', 'Rackspace', 'Google', 'OpenStack', 'AzureRM', 'Aliyun', 'backblaze'].include?(@provider)
               expect(@fog_file.authenticated_url).not_to be_nil
             end
           end