diff --git a/src/furo/assets/styles/variables/_fonts.scss b/src/furo/assets/styles/variables/_fonts.scss
index 91b8ff34..26187579 100644
--- a/src/furo/assets/styles/variables/_fonts.scss
+++ b/src/furo/assets/styles/variables/_fonts.scss
@@ -10,6 +10,7 @@
     sans-serif, Apple Color Emoji, Segoe UI Emoji;
   --font-stack--monospace: "SFMono-Regular", Menlo, Consolas, Monaco,
     Liberation Mono, Lucida Console, monospace;
+  --font-stack--headings: var(--font-stack);
 
   --font-size--normal: 100%;
   --font-size--small: 87.5%;