diff --git a/init.org b/init.org
index 6922cb1..3c391de 100644
--- a/init.org
+++ b/init.org
@@ -155,46 +155,46 @@
    installed. To ensure we install missing packages if they are missing.
 
    #+BEGIN_SRC emacs-lisp
-     (let* ((packages
-             '(ace-jump-mode        ; quick cursor location minor mode
-               auto-compile         ; automatically compile Emacs Lisp libraries
-               centered-window-mode ; Center the text when there's only one window
-               cider                ; Clojure Interactive Development Environment
-               company              ; Modular text completion framework
-               define-word          ; display the definition of word at point
-               diminish             ; Diminished modes from modeline
-               elscreen             ; window session manager
-               expand-region        ; Increase selected region by semantic units
-               idle-require         ; load elisp libraries while Emacs is idle
-               geiser               ; GNU Emacs and Scheme talk to each other
-               haskell-mode         ; A Haskell editing mode
-               helm                 ; Incremental and narrowing framework
-               helm-projectile      ; Helm integration for Projectile
-               helm-company         ; Helm interface for company-mode
-               jedi                 ; Python auto-completion for Emacs
-               js2-mode             ; Improved JavaScript editing mode
-               magit                ; control Git from Emacs
-               markdown-mode        ; Emacs Major mode for Markdown-formatted files
-               matlab-mode          ; MATLAB integration with Emacs
-               monokai-theme        ; A fruity color theme for Emacs
-               move-text            ; Move current line or region with M-up or M-down
-               multiple-cursors     ; Multiple cursors for Emacs.
-               olivetti             ; Minor mode for a nice writing environment
-               org                  ; Outline-based notes management and organizer
-               paredit              ; minor mode for editing parentheses
-               powerline            ; Rewrite of Powerline
-               pretty-lambdada      ; the word `lambda' as the Greek letter.
-               projectile           ; Manage and navigate projects in Emacs easily
-               slime                ; Superior Lisp Interaction Mode for Emacs
-               try))                ; Try out Emacs packages
-            ;; Remove all packages already installed
-            (packages (remove-if 'package-installed-p packages)))
-       (when packages
-         (ignore-errors (package-refresh-contents)
-                        (mapcar 'package-install packages)
-                        ;; This package is only relevant for Mac OS X.
-                        (when (memq window-system '(mac ns))
-                          (package-install 'exec-path-from-shell)))))
+   (let* ((packages
+           '(ace-jump-mode        ; quick cursor location minor mode
+             auto-compile         ; automatically compile Emacs Lisp libraries
+             cider                ; Clojure Interactive Development Environment
+             company              ; Modular text completion framework
+             define-word          ; display the definition of word at point
+             diminish             ; Diminished modes from modeline
+             expand-region        ; Increase selected region by semantic units
+             focus                ; Dim color of text in surrounding sections
+             idle-require         ; load elisp libraries while Emacs is idle
+             geiser               ; GNU Emacs and Scheme talk to each other
+             haskell-mode         ; A Haskell editing mode
+             helm                 ; Incremental and narrowing framework
+             helm-company         ; Helm interface for company-mode
+             helm-projectile      ; Helm integration for Projectile
+             helm-swoop           ; Efficiently hopping squeezed lines
+             jedi                 ; Python auto-completion for Emacs
+             js2-mode             ; Improved JavaScript editing mode
+             magit                ; control Git from Emacs
+             markdown-mode        ; Emacs Major mode for Markdown-formatted files
+             matlab-mode          ; MATLAB integration with Emacs
+             monokai-theme        ; A fruity color theme for Emacs
+             move-text            ; Move current line or region with M-up or M-down
+             multiple-cursors     ; Multiple cursors for Emacs.
+             olivetti             ; Minor mode for a nice writing environment
+             org                  ; Outline-based notes management and organizer
+             paredit              ; minor mode for editing parentheses
+             pdf-tools            ; Emacs support library for PDF files.
+             pretty-lambdada      ; the word `lambda' as the Greek letter.
+             projectile           ; Manage and navigate projects in Emacs easily
+             slime                ; Superior Lisp Interaction Mode for Emacs
+             try))                ; Try out Emacs packages
+          ;; Remove all packages already installed
+          (packages (remove-if 'package-installed-p packages)))
+     (when packages
+       (ignore-errors (package-refresh-contents)
+                      (mapcar 'package-install packages)
+                      ;; This package is only relevant for Mac OS X.
+                      (when (memq window-system '(mac ns))
+                        (package-install 'exec-path-from-shell)))))
    #+END_SRC
 
 ** Mac OS X