diff --git a/Changelog.md b/Changelog.md
index 74ad064ff..0738c59fe 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -62,6 +62,7 @@ With the port to Bootstrap 3, app/views/terms/default.haml has a new structure.
 ## Refactor
 * Drop broken correlations from the admin pages [#6223](https://github.com/diaspora/diaspora/pull/6223)
 * Extract PostService from PostsController [#6208](https://github.com/diaspora/diaspora/pull/6208)
+* Drop outdated/unused mbp-respond.min.js and mbp-modernizr-custom.js [#6257](https://github.com/diaspora/diaspora/pull/6257)
 
 ## Bug fixes
 * Fix indentation and a link title on the default home page [#6212](https://github.com/diaspora/diaspora/pull/6212)
diff --git a/app/assets/javascripts/mobile/mobile.js b/app/assets/javascripts/mobile/mobile.js
index 596bfa673..3c17a14bf 100644
--- a/app/assets/javascripts/mobile/mobile.js
+++ b/app/assets/javascripts/mobile/mobile.js
@@ -6,8 +6,6 @@
  */
 //= require jquery.charcount
 //= require js-routes
-//= require mbp-modernizr-custom
-//= require mbp-respond.min
 //= require mbp-helper
 //= require jquery.autoSuggest.custom
 //= require fileuploader-custom
diff --git a/vendor/assets/javascripts/mbp-modernizr-custom.js b/vendor/assets/javascripts/mbp-modernizr-custom.js
deleted file mode 100644
index cc5ec7ce2..000000000
--- a/vendor/assets/javascripts/mbp-modernizr-custom.js
+++ /dev/null
@@ -1,15 +0,0 @@
-/*!
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- * http://www.modernizr.com
- *
- * Developed by: 
- * - Faruk Ates  http://farukat.es/
- * - Paul Irish  http://paulirish.com/
- *
- * Copyright (c) 2009-2011
- * Dual-licensed under the BSD or MIT licenses.
- * http://www.modernizr.com/license/
- */
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diff --git a/vendor/assets/javascripts/mbp-respond.min.js b/vendor/assets/javascripts/mbp-respond.min.js
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index e37cd86d4..000000000
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+++ /dev/null
@@ -1,7 +0,0 @@
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