diff --git a/init.d/programming/common.el b/init.d/programming/common.el
index 44d0560..dbc79ce 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: <2020-11-13T17:58:15+0100>
+;; Time-stamp: <2020-11-15T19:51:36+0100>
 
 ;;; Commentary:
 
@@ -23,7 +23,9 @@
               "Returns the version of clangd as float."
               (string-to-number
                (nth 2 (split-string
-                       (shell-command-to-string "clangd --version"))))))
+                       (shell-command-to-string "clangd --version")))))
+
+            (which-function-mode))
   :bind (("C-:" . ff-find-other-file)   ; Switch between header and source.
          (:map compilation-mode-map
                ("<f5>" . compilation-previous-error)