diff --git a/repo/core/css/theme.css b/repo/core/css/theme.css
index 96f1efc..dac7b68 100644
--- a/repo/core/css/theme.css
+++ b/repo/core/css/theme.css
@@ -107,7 +107,9 @@
   font-family: var(--theme--font_code) !important;
 }
 .notion-frame .notion-page-block div[placeholder='Untitled'] {
-  font-size: var(--theme--font_title-size) !important;
+  font-size: calc(
+    var(--theme--font_body-size) * (var(--theme--font_heading1-size) / 1em)
+  ) !important;
 }
 [placeholder='Heading 1'] {
   font-size: calc(