diff --git a/.emacs.d/modes.el b/.emacs.d/modes.el
index ee4d6eda..77ea3622 100644
--- a/.emacs.d/modes.el
+++ b/.emacs.d/modes.el
@@ -642,3 +642,21 @@ properly escaped with double-quotes in case it has spaces."
   '(progn
      ;; Change .pdf association directly within the alist
      (setcdr (assoc "\\.pdf\\'" org-file-apps) "zathura --fork %s")))
+
+;;==============================================================================
+;; Qt semantic support
+;;==============================================================================
+
+;; Qt base directory, meaning the directory where the 'Qt' directory can be found.
+;; Adapt accordingly.
+(setq qt4-base-dir "/usr/include/qt4")
+(setq qt4-gui-dir (concat qt4-base-dir "/QtGui"))
+(semantic-add-system-include qt4-base-dir 'c++-mode)
+(semantic-add-system-include qt4-gui-dir 'c++-mode)
+(add-to-list 'auto-mode-alist (cons qt4-base-dir 'c++-mode))
+(add-hook
+ 'c++-mode-hook
+ (lambda ()
+   (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat qt4-base-dir "/Qt/qconfig.h"))
+   (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat qt4-base-dir "/Qt/qconfig-large.h"))
+   (add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat qt4-base-dir "/Qt/qglobal.h"))))
\ No newline at end of file