diff --git a/init.el b/init.el
index 23c6e72..4d95da5 100644
--- a/init.el
+++ b/init.el
@@ -225,7 +225,7 @@
     "'"   '(iterm-focus :which-key "iterm")
     "?"   '(iterm-goto-filedir-or-home :which-key "iterm - goto dir")
     "/"   'counsel-ag
-    "TAB" '(switch-to-last-buffer :which-key "prev buffer")
+    "TAB" '(foo/switch-to-last-buffer :which-key "prev buffer")
 
     ;; Applications
     "a" '(:ignore t :which-key "Applications")
@@ -238,15 +238,15 @@
     "bd" 'evil-delete-buffer
     "bn" 'next-buffer
     "bn" 'next-buffer
-    "bs" 'switch-to-scratch-buffer
+    "bs" 'foo/switch-to-scratch-buffer
 
     ;; Files
     "ff"  'counsel-find-file
     "fL" 'counsel-locate
     "fr" 'counsel-recentf
-    "fR" 'rename-current-buffer-file
-    "fD" 'delete-current-buffer-file
-    "fc" 'copy-file'
+    "fR" 'foo/rename-current-buffer-file
+    "fD" 'foo/delete-current-buffer-file
+    "fc" 'foo/copy-file'
 
     ;; Git
     "g" '(:ignore t :which-key "Magit")
@@ -300,7 +300,7 @@
     "w <left>"    'evil-window-left
     "wL"          'evil-window-move-far-right
     "wl"          'evil-window-right
-    "wm"          'toggle-maximize-buffer
+    "wm"          'foo/toggle-maximize-buffer
     "wo"          'other-frame
     "w <right>"   'evil-window-right
     "w <S-down>"  'evil-window-move-very-bottom
@@ -323,7 +323,7 @@
     ))
 
 ;; custom functions
-(defun toggle-maximize-buffer () "Maximize buffer."
+(defun foo/toggle-maximize-buffer () "Maximize buffer."
   (interactive)
   (save-excursion
     (if (and (= 1 (length (window-list)))
@@ -333,7 +333,7 @@
         (window-configuration-to-register ?_)
         (delete-other-windows)))))
 
-(defun switch-to-scratch-buffer (&optional arg)
+(defun foo/switch-to-scratch-buffer (&optional arg)
   "Switch to the `*scratch*' buffer, creating it first if needed.
 if prefix argument ARG is given, switch to it in an other, possibly new window."
   (interactive "P")
@@ -342,12 +342,12 @@ if prefix argument ARG is given, switch to it in an other, possibly new window."
         (switch-to-buffer-other-window (get-buffer-create "*scratch*"))
       (switch-to-buffer (get-buffer-create "*scratch*")))))
 
-(defun switch-to-last-buffer ()
+(defun foo/switch-to-last-buffer ()
   "Switch to the last buffer, allowes quick jumping between the last two."
   (interactive)
   (switch-to-buffer nil))
 
-(defun delete-current-buffer-file ()
+(defun foo/delete-current-buffer-file ()
   "Remove file connected to current buffer and kill buffer."
   (interactive)
   (let ((filename (buffer-file-name))
@@ -427,7 +427,7 @@ initialized with the current directory instead of filename."
                 ;; ?\a = C-g, ?\e = Esc and C-[
                 ((memq key '(?\a ?\e)) (keyboard-quit))))))))
 
-(defun copy-file ()
+(defun foo/copy-file ()
   "Write the file under new name."
   (interactive)
   (call-interactively 'write-file))