diff --git a/modules/ui/zen/config.el b/modules/ui/zen/config.el
index f604690f6..487b11d6a 100644
--- a/modules/ui/zen/config.el
+++ b/modules/ui/zen/config.el
@@ -50,4 +50,14 @@
             'org-indent
             'font-lock-comment-face
             'line-number
-            'line-number-current-line))
+            'line-number-current-line)
+
+  ;; See https://gitlab.com/jabranham/mixed-pitch/issues/6#note_79691741
+  (defadvice! +zen--fix-scaled-fixed-pitch-faces-a (orig-fn &rest args)
+    :around #'mixed-pitch-mode
+    (cl-letf* ((old-face-remap-add-relative (symbol-function #'face-remap-add-relative))
+               ((symbol-function #'face-remap-add-relative)
+                (lambda (face &rest specs)
+                  (funcall old-face-remap-add-relative
+                           face (doom-plist-delete specs :height)))))
+      (apply orig-fn args))))