diff --git a/core/prelude-core.el b/core/prelude-core.el
index a9e1167..3bee675 100644
--- a/core/prelude-core.el
+++ b/core/prelude-core.el
@@ -285,6 +285,7 @@ there's a region, all lines that region covers will be duplicated."
   (interactive)
   (byte-recompile-directory prelude-dir 0))
 
+(require 'ido)
 (defun prelude-sudo-edit (&optional arg)
   "Edit currently visited file as root.
 
diff --git a/core/prelude-editor.el b/core/prelude-editor.el
index b116335..3afe162 100644
--- a/core/prelude-editor.el
+++ b/core/prelude-editor.el
@@ -298,6 +298,7 @@ The body of the advice is in BODY."
   (interactive
    (list (not (region-active-p)))))
 
+(require 'tabify)
 (defmacro with-region-or-buffer (func)
   "When called with no active region, call FUNC on current buffer."
   `(defadvice ,func (before with-region-or-buffer activate compile)