diff --git a/init.d/basics/ui.el b/init.d/basics/ui.el
index d34b495..f0e31d5 100644
--- a/init.d/basics/ui.el
+++ b/init.d/basics/ui.el
@@ -1,6 +1,6 @@
 ;;; ui.el --- Configure user interfaces. -*- lexical-binding: t; -*-
 
-;; Time-stamp: <2020-02-11T17:45:47+0100>
+;; Time-stamp: <2020-02-11T18:35:21+0100>
 
 ;;; Commentary:
 ;; * treemacs
@@ -132,6 +132,18 @@
 
   :custom
   (counsel-projectile-mode t)  ; Turn on projectile-mode and enable keybindings.
+  (projectile-switch-project-action 'my/switch-project)
+
+  :config
+  (defun my/counsel-projectile-switch-project-action (project)
+    "Call `my/switch-project'."
+    (let ((projectile-switch-project-action 'my/switch-project))
+      (counsel-projectile-switch-project-by-name project)))
+
+  (counsel-projectile-modify-action
+   'counsel-projectile-switch-project-action
+   '((add ("Y" my/counsel-projectile-switch-project-action
+           "open project in treemacs") 1)))
   )
 
 ;; Switch between named persistent window configurations.
diff --git a/init.d/programming/common.el b/init.d/programming/common.el
index 4984ceb..96c193c 100644
--- a/init.d/programming/common.el
+++ b/init.d/programming/common.el
@@ -1,6 +1,6 @@
 ;;; common.el --- Common programming settings. -*- lexical-binding: t; -*-
 
-;; Time-stamp: <2020-02-11T17:47:01+0100>
+;; Time-stamp: <2020-02-11T18:31:37+0100>
 
 ;;; Commentary:
 
@@ -132,7 +132,7 @@
               (substring (shell-command-to-string "nproc --ignore=1") 0 -1)))
 
     (defun my/switch-project ()
-      "Add project to treemacs."
+      "Open `treemacs' and add project to workspace."
       (treemacs-add-and-display-current-project)
       (treemacs-collapse-other-projects)
       (treemacs-toggle-node))