diff --git a/.all-contributorsrc b/.all-contributorsrc
index b8ff614..f0c322e 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -194,6 +194,15 @@
         "test",
         "tool"
       ]
+    },
+    {
+      "login": "warborn",
+      "name": "Iván Munguía",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/10677789?v=4",
+      "profile": "https://ivan-munguia.netlify.com",
+      "contributions": [
+        "code"
+      ]
     }
   ]
 }
diff --git a/README.md b/README.md
index 9275f79..309e259 100644
--- a/README.md
+++ b/README.md
@@ -73,5 +73,5 @@ Thanks goes out to all these wonderful people ([emoji key](https://github.com/ke
 | [<img src="https://avatars0.githubusercontent.com/u/10078572?v=4" width="100px;"/><br /><sub><b>briandennis</b></sub>](https://github.com/briandennis)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=briandennis "Code") [📖](https://github.com/dawnlabs/carbon/commits?author=briandennis "Documentation") [🚇](#infra-briandennis "Infrastructure (Hosting, Build-Tools, etc)") [👀](#review-briandennis "Reviewed Pull Requests") | [<img src="https://avatars0.githubusercontent.com/u/8397708?v=4" width="100px;"/><br /><sub><b>mfix22</b></sub>](https://github.com/mfix22)<br />[💬](#question-mfix22 "Answering Questions") [💻](https://github.com/dawnlabs/carbon/commits?author=mfix22 "Code") [🤔](#ideas-mfix22 "Ideas, Planning, & Feedback") | [<img src="https://avatars1.githubusercontent.com/u/10369094?v=4" width="100px;"/><br /><sub><b>jakedex</b></sub>](https://github.com/jakedex)<br />[💬](#question-jakedex "Answering Questions") [💻](https://github.com/dawnlabs/carbon/commits?author=jakedex "Code") [🎨](#design-jakedex "Design") [📹](#video-jakedex "Videos") | [<img src="https://avatars1.githubusercontent.com/u/10191084?v=4" width="100px;"/><br /><sub><b>andrewda</b></sub>](https://github.com/andrewda)<br />[💬](#question-andrewda "Answering Questions") [💻](https://github.com/dawnlabs/carbon/commits?author=andrewda "Code") [🐛](https://github.com/dawnlabs/carbon/issues?q=author%3Aandrewda "Bug reports") [👀](#review-andrewda "Reviewed Pull Requests") | [<img src="https://avatars2.githubusercontent.com/u/14703164?v=4" width="100px;"/><br /><sub><b>yeskunall</b></sub>](https://github.com/yeskunall)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=yeskunall "Code") [📖](https://github.com/dawnlabs/carbon/commits?author=yeskunall "Documentation") [🔧](#tool-yeskunall "Tools") [🐛](https://github.com/dawnlabs/carbon/issues?q=author%3Ayeskunall "Bug reports") | [<img src="https://avatars1.githubusercontent.com/u/2652676?v=4" width="100px;"/><br /><sub><b>stoshfabricius</b></sub>](https://github.com/stoshfabricius)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=stoshfabricius "Code") | [<img src="https://avatars1.githubusercontent.com/u/11639896?v=4" width="100px;"/><br /><sub><b>jkling38</b></sub>](https://github.com/jkling38)<br />[📖](https://github.com/dawnlabs/carbon/commits?author=jkling38 "Documentation") |
 | :---: | :---: | :---: | :---: | :---: | :---: | :---: |
 | [<img src="https://avatars1.githubusercontent.com/u/225946?v=4" width="100px;"/><br /><sub><b>otobrglez</b></sub>](https://github.com/otobrglez)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=otobrglez "Code") | [<img src="https://avatars3.githubusercontent.com/u/11488612?v=4" width="100px;"/><br /><sub><b>darahak</b></sub>](https://github.com/darahak)<br />[📖](https://github.com/dawnlabs/carbon/commits?author=darahak "Documentation") | [<img src="https://avatars0.githubusercontent.com/u/246651?v=4" width="100px;"/><br /><sub><b>dom96</b></sub>](https://github.com/dom96)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=dom96 "Code") | [<img src="https://avatars3.githubusercontent.com/u/784056?v=4" width="100px;"/><br /><sub><b>elrumordelaluz</b></sub>](https://github.com/elrumordelaluz)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=elrumordelaluz "Code") | [<img src="https://avatars2.githubusercontent.com/u/21217?v=4" width="100px;"/><br /><sub><b>cjb</b></sub>](https://github.com/cjb)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=cjb "Code") | [<img src="https://avatars1.githubusercontent.com/u/5427083?v=4" width="100px;"/><br /><sub><b>Krzysztof-Cieslak</b></sub>](https://github.com/Krzysztof-Cieslak)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=Krzysztof-Cieslak "Code") | [<img src="https://avatars0.githubusercontent.com/u/2369851?v=4" width="100px;"/><br /><sub><b>fernahh</b></sub>](https://github.com/fernahh)<br />[📖](https://github.com/dawnlabs/carbon/commits?author=fernahh "Documentation") |
-| [<img src="https://avatars1.githubusercontent.com/u/10941033?v=4" width="100px;"/><br /><sub><b>g3r4n</b></sub>](https://github.com/g3r4n)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=g3r4n "Code") | [<img src="https://avatars0.githubusercontent.com/u/55830?v=4" width="100px;"/><br /><sub><b>Mat Gadd</b></sub>](http://drarok.com/)<br />[🐛](https://github.com/dawnlabs/carbon/issues?q=author%3ADrarok "Bug reports") [💻](https://github.com/dawnlabs/carbon/commits?author=Drarok "Code") | [<img src="https://avatars1.githubusercontent.com/u/11805775?v=4" width="100px;"/><br /><sub><b>Brad Davies</b></sub>](https://bradlab.co.uk)<br />[🐛](https://github.com/dawnlabs/carbon/issues?q=author%3Avarbrad "Bug reports") [💻](https://github.com/dawnlabs/carbon/commits?author=varbrad "Code") | [<img src="https://avatars1.githubusercontent.com/u/9087886?v=4" width="100px;"/><br /><sub><b>Rafael Câmara</b></sub>](http://www.rafaelcamaram.com/)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=rafaelcamaram "Code") | [<img src="https://avatars1.githubusercontent.com/u/2212006?v=4" width="100px;"/><br /><sub><b>Gleb Bahmutov</b></sub>](https://glebbahmutov.com/)<br />[⚠️](https://github.com/dawnlabs/carbon/commits?author=bahmutov "Tests") [🔧](#tool-bahmutov "Tools") |
+| [<img src="https://avatars1.githubusercontent.com/u/10941033?v=4" width="100px;"/><br /><sub><b>g3r4n</b></sub>](https://github.com/g3r4n)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=g3r4n "Code") | [<img src="https://avatars0.githubusercontent.com/u/55830?v=4" width="100px;"/><br /><sub><b>Mat Gadd</b></sub>](http://drarok.com/)<br />[🐛](https://github.com/dawnlabs/carbon/issues?q=author%3ADrarok "Bug reports") [💻](https://github.com/dawnlabs/carbon/commits?author=Drarok "Code") | [<img src="https://avatars1.githubusercontent.com/u/11805775?v=4" width="100px;"/><br /><sub><b>Brad Davies</b></sub>](https://bradlab.co.uk)<br />[🐛](https://github.com/dawnlabs/carbon/issues?q=author%3Avarbrad "Bug reports") [💻](https://github.com/dawnlabs/carbon/commits?author=varbrad "Code") | [<img src="https://avatars1.githubusercontent.com/u/9087886?v=4" width="100px;"/><br /><sub><b>Rafael Câmara</b></sub>](http://www.rafaelcamaram.com/)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=rafaelcamaram "Code") | [<img src="https://avatars1.githubusercontent.com/u/2212006?v=4" width="100px;"/><br /><sub><b>Gleb Bahmutov</b></sub>](https://glebbahmutov.com/)<br />[⚠️](https://github.com/dawnlabs/carbon/commits?author=bahmutov "Tests") [🔧](#tool-bahmutov "Tools") | [<img src="https://avatars2.githubusercontent.com/u/10677789?v=4" width="100px;"/><br /><sub><b>Iván Munguía</b></sub>](https://ivan-munguia.netlify.com)<br />[💻](https://github.com/dawnlabs/carbon/commits?author=warborn "Code") |
 <!-- ALL-CONTRIBUTORS-LIST:END -->
diff --git a/lib/constants.js b/lib/constants.js
index 73b09f5..926e39f 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -153,6 +153,11 @@ export const LANGUAGES = [
     name: 'Dart',
     mode: 'dart'
   },
+  {
+    name: 'Diff',
+    mode: 'diff',
+    mime: 'text/x-diff'
+  },
   {
     name: 'Django',
     mode: 'django'