diff --git a/oni/home/services/emacs.scm b/oni/home/services/emacs.scm
index 5cf9a17..130ffe8 100644
--- a/oni/home/services/emacs.scm
+++ b/oni/home/services/emacs.scm
@@ -409,6 +409,7 @@
                             "(golden-ratio-mode)\n"
                             "(with-eval-after-load 'ace-window\n"
                             "  (advice-add 'ace-window :after #'golden-ratio))\n"
+                            "(add-to-list 'golden-ratio-exclude-modes 'calculator-mode)\n"
                             ";;;;; golden-ratio-config ends here.\n"))
      (home-emacs-golden-ratio-configuration-configurations config)))))