diff --git a/lib/helpers/gocd_helpers.rb b/lib/helpers/gocd_helpers.rb
index 22d1e9c8a7..d581599857 100644
--- a/lib/helpers/gocd_helpers.rb
+++ b/lib/helpers/gocd_helpers.rb
@@ -112,7 +112,7 @@ def twitter_card_image(image)
     else
       File.join(app.config[:source], asset_path(:images, path_to_image, :relative => false))
     end
-    raise "Image does not exist or too large to use for Twitter summary: #{full_path_of_image}" unless (File.exists?(full_path_of_image) && (File.size(full_path_of_image) < (1024 * 1024 * 1024)))
+    raise "Image does not exist or too large to use for Twitter summary: #{full_path_of_image}" unless (File.exist?(full_path_of_image) && (File.size(full_path_of_image) < (1024 * 1024 * 1024)))
     URI::join(config.base_url, asset_path(:images, path_to_image, :relative => false))
   end