diff --git a/README.md b/README.md
index 5086009..fa1a6dd 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,37 @@ job = Coconut::Job.create(
 )
 ```
 
+A job without config file can contain outputs with same key (like hls). Since the Hash instance can't have duplicate keys, you have to prefix them:
+
+```ruby
+vid = 1234
+s3 = "s3://accesskey:secretkey@mybucket"
+
+job = Coconut::Job.create(
+  :api_key => "k-api-key",
+  :source  => "http://yoursite.com/media/video.mp4",
+  :webhook => "http://mysite.com/webhook/coconut?videoId=#{vid}",
+  :outputs => {
+    "2@hls" => "#{s3}/videos/playlist.m3u8, variants=hls:360p, if=$source_height > 300",
+    "1@hls" => "#{s3}/videos/playlist.m3u8, variants=hls:240p, if=$source_height < 300",
+  }
+)
+```
+
+The output config file will contain 2 hls outputs, sorted by prefix:
+
+```ini
+var s3 = s3://accesskey:secretkey@mybucket
+
+set webhook = http://mysite.com/webhook/coconut?videoId=$vid
+
+-> hls = $s3/videos/playlist.m3u8, variants=hls:240p, if=$source_height < 300
+-> hls = $s3/videos/playlist.m3u8, variants=hls:360p, if=$source_height > 300
+```
+
+The prefix can be any digital or a-zA-Z char.
+
+
 Note that you can use the environment variable `COCONUT_API_KEY` to set your API key.
 
 ## Contributing
diff --git a/lib/coconutrb.rb b/lib/coconutrb.rb
index c8f46fc..d945eb9 100644
--- a/lib/coconutrb.rb
+++ b/lib/coconutrb.rb
@@ -69,7 +69,7 @@ def self.config(options={})
     new_conf << ""
     new_conf.concat conf.select{|l| l.start_with?("set")}.sort
     new_conf << ""
-    new_conf.concat conf.select{|l| l.start_with?("->")}.sort
+    new_conf.concat conf.select{|l| l.start_with?("->")}.sort.map{ |output| output.sub /^(->\s+)[\w\d]+?@/, '\1' }
 
     return new_conf.join("\n")
   end
diff --git a/test/coconutrb_test.rb b/test/coconutrb_test.rb
index b6b52c5..833ce84 100644
--- a/test/coconutrb_test.rb
+++ b/test/coconutrb_test.rb
@@ -83,6 +83,56 @@ def test_generate_full_config_with_no_file
     assert_equal generated, config
   end
 
+  def test_generate_config_with_no_file_and_multiple_same_typed_outputs
+    base_conf = {
+      :vars => {
+        :vid => 1234,
+        :user => 5098,
+        :s3 => "s3://a:s@bucket"
+      },
+      :source => "https://s3-eu-west-1.amazonaws.com/files.coconut.co/test.mp4",
+      :webhook => "http://mysite.com/webhook?vid=$vid&user=$user",
+    }
+
+    output_without_prefix =  { :outputs => {
+      "hls" => "$s3/playlist.m3u8, variants=hls:240p,hls:360p",
+    } }
+
+    outputs_with_num_prefix =  { :outputs => {
+      "2@hls" => "$s3/playlist.m3u8, variants=hls:480p,hls:720p, if=$source_height > 300",
+      "1@hls" => "$s3/playlist.m3u8, variants=hls:240p,hls:360p, if=$source_height < 300",
+    } }
+
+    outputs_with_az_prefix =  { :outputs => {
+      "cd@hls" => "$s3/playlist.m3u8, variants=hls:480p,hls:720p, if=$source_height > 300",
+      "ad@hls" => "$s3/playlist.m3u8, variants=hls:240p,hls:360p, if=$source_height < 300",
+    } }
+
+    config_no_prefix = Coconut.config(base_conf.merge(output_without_prefix))
+    config_num = Coconut.config(base_conf.merge(outputs_with_num_prefix))
+    config_az = Coconut.config(base_conf.merge(outputs_with_az_prefix))
+
+    generated_base = [
+      "var s3 = s3://a:s@bucket",
+      "var user = 5098",
+      "var vid = 1234",
+      "",
+      "set source = https://s3-eu-west-1.amazonaws.com/files.coconut.co/test.mp4",
+      "set webhook = http://mysite.com/webhook?vid=$vid&user=$user",
+      "",
+    ]
+
+    generated_no_prefix = generated_base.dup.push("-> hls = $s3/playlist.m3u8, variants=hls:240p,hls:360p").join("\n")
+
+    generated_with_prefix = generated_base.dup.push("-> hls = $s3/playlist.m3u8, variants=hls:240p,hls:360p, if=$source_height < 300",
+                                            "-> hls = $s3/playlist.m3u8, variants=hls:480p,hls:720p, if=$source_height > 300").join("\n")
+
+    assert_equal generated_no_prefix, config_no_prefix
+    assert_equal generated_with_prefix, config_num
+    assert_equal generated_with_prefix, config_az
+
+  end
+
   def test_generate_config_with_file
     File.open("coconut.conf", "w") {|f| f.write("var s3 = s3://a:s@bucket/video\nset webhook = http://mysite.com/webhook?vid=$vid&user=$user\n-> mp4 = $s3/$vid.mp4")}