diff --git a/modules/ui/fci/config.el b/modules/ui/fci/config.el
index c423d2f3c..77da05dd8 100644
--- a/modules/ui/fci/config.el
+++ b/modules/ui/fci/config.el
@@ -21,23 +21,6 @@ Changes to this variable do not take effect until `fci-mode' is restarted.")
   ;; more important to me, so...
   (add-hook 'org-mode-hook #'turn-off-fci-mode)
 
-  ;; turn off fci if the window is narrow than fill column
-  (defun +fci-toggle-maybe (window)
-    (let ((fci-enabled (symbol-value 'fci-mode))
-          (fci-column (or fci-rule-column fill-column)))
-      (with-selected-window window
-        (if (and (eq fci-enabled nil)
-                 (< fci-column
-                    (+ (window-width) (window-hscroll))))
-            (turn-on-fci-mode)
-          (turn-off-fci-mode)))))
-
-  (defun +fci|width-workaround (&rest _)
-    (walk-windows #'+fci-toggle-maybe 'no-minibuf))
-
-  (add-hook 'window-size-change-functions #'+fci|width-workaround)
-  (add-hook 'window-configuration-change-hook #'+fci|width-workaround)
-
   (defun +fci|set-color ()
     "Automatically change `fci-rule-color' based on `+fci-rule-color-function's
 return value. To disable this, either set `+fci-rule-color-function' to nil or