1 files changed, 3 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
index bc53b70d2f6..cd2e5df3255 100644
--- a/Gemfile
+++ b/Gemfile
@@ -263,6 +263,9 @@ gem 'ace-rails-ap', '~> 4.1.0'
 # Detect and convert string character encoding
 gem 'charlock_holmes', '~> 0.7.5'
 
+# Detect mime content type from content
+gem 'mimemagic', '~> 0.3.2'
+
 # Faster blank
 gem 'fast_blank'