diff --git a/custom/setup-autocompletion.el b/custom/setup-autocompletion.el
index c9e9504..e784b93 100644
--- a/custom/setup-autocompletion.el
+++ b/custom/setup-autocompletion.el
@@ -9,6 +9,7 @@
   '(add-hook 'flycheck-mode-hook 'flycheck-irony-setup))
 
 (add-hook 'irony-mode-hook 'irony-cdb-autosetup-compile-options)
+(add-hook 'irony-mode-hook 'irony-eldoc)
 
 ;; Add irony-, flycheck-, company-mode to c-mode
 (add-hook 'c-mode-hook 'irony-mode)
diff --git a/init.el b/init.el
index c4b9c3c..d23ffb6 100644
--- a/init.el
+++ b/init.el
@@ -47,6 +47,7 @@
     sr-speedbar
     company
     irony
+    irony-eldoc
     company-irony
     flycheck-irony
     elpy
@@ -101,7 +102,7 @@
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
- '(package-selected-packages (quote (elpy irony helm-swoop helm))))
+ '(package-selected-packages (quote (irony-eldoc elpy irony helm-swoop helm))))
 (custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.