diff --git a/app/uploaders/binda/audio/audio_uploader.rb b/app/uploaders/binda/audio/audio_uploader.rb
index b3a2a231..ce73ceb8 100644
--- a/app/uploaders/binda/audio/audio_uploader.rb
+++ b/app/uploaders/binda/audio/audio_uploader.rb
@@ -20,6 +20,9 @@ def register_details
         if file && model
             model.content_type = file.content_type if file.content_type
             model.file_size = file.size
+            TagLib::FileRef.open(file.file.path) do |file|
+              model.duration = file.audio_properties.length
+            end
         end
     end
 
diff --git a/binda.gemspec b/binda.gemspec
index 0cb91238..60b82828 100644
--- a/binda.gemspec
+++ b/binda.gemspec
@@ -37,6 +37,7 @@ Gem::Specification.new do |s|
   s.add_dependency "kaminari",             "~> 1.0"
   s.add_dependency "friendly_id",          ">= 5.1",        "< 5.4"
   s.add_dependency "bourbon",              "4.3.4"
+  s.add_dependency "taglib-ruby"           ">=1.1.0"
 
 
   # DEVELOPMENT GEMS