diff --git a/core/autoload/ui.el b/core/autoload/ui.el
index a0b509f68..3279d28a4 100644
--- a/core/autoload/ui.el
+++ b/core/autoload/ui.el
@@ -15,6 +15,12 @@
   (interactive "P")
   (linum-mode (or arg (if linum-mode -1 +1))))
 
+;;;###autoload
+(defun doom-resize-window (new-size &optional horizontal)
+  "Resize a window to NEW-SIZE. If HORIZONTAL, do it width-wise."
+  (enlarge-window (- new-size (if horizontal (window-width) (window-height)))
+                  horizontal))
+
 ;;;###autoload
 (defun doom/window-zoom ()
   "Maximize and isolate the current buffer. Activate again to undo this. If the
@@ -25,3 +31,18 @@ window changes before then, the undo expires."
       (jump-to-register ?_)
     (window-configuration-to-register ?_)
     (delete-other-windows)))
+
+(defvar doom--window-wconf nil)
+
+;;;###autoload
+(defun doom/window-enlargen ()
+  "Enlargen the current window. Activate again to undo."
+  (interactive)
+  (setq doom--window-enlargened
+        (if (and doom--window-enlargened
+                 (assoc ?_ register-alist))
+            (ignore (jump-to-register ?_))
+          (window-configuration-to-register ?_)
+          (doom-resize-window (truncate (/ (frame-width)  1.2)) t)
+          (doom-resize-window (truncate (/ (frame-height) 1.2)))
+          t)))
diff --git a/modules/private/hlissner/+bindings.el b/modules/private/hlissner/+bindings.el
index 3fe14d2e5..d3dd2ecce 100644
--- a/modules/private/hlissner/+bindings.el
+++ b/modules/private/hlissner/+bindings.el
@@ -255,7 +255,7 @@
    "u"       #'winner-undo
    "C-u"     #'winner-undo
    "C-r"     #'winner-redo
-   "o"       #'doom/window-zoom
+   "o"       #'doom/window-enlargen
    ;; Delete window
    "c"       #'+workspace/close-window-or-workspace
    "C-C"     #'ace-delete-window)