diff --git a/org/config/spacemacs.org b/org/config/spacemacs.org
index 24f2ea1..18ea17e 100644
--- a/org/config/spacemacs.org
+++ b/org/config/spacemacs.org
@@ -3228,13 +3228,15 @@
    40% of Emacs’  frame, the rest will be  given to emails. As you  can see, the
    width of the mu4e headers is evaluated each time we enter it, so it can react
    to the frame being potentially not the  same width than earlier or the window
-   not taking the entire frame.
+   not taking the entire frame. It has to have a minimal size though, I’d say 80
+   characters is enough for that.
    #+BEGIN_SRC emacs-lisp
      (setq mu4e-split-view 'vertical)
-     (add-hook 'mu4e-view-mode-hook
+     (add-hook 'mu4e-headers-mode-hook
                (lambda ()
-                 (setq mu4e-headers-visible-columns (round (* (window-width)
-                                                              0.4)))))
+                 (setq mu4e-headers-visible-columns (max 80
+                                                         (round (* (window-width)
+                                                                   0.4))))))
    #+END_SRC
 
    This  is the  setup I  have for  my  SMTP mail  server: I  point Emacs’  SMTP