1 files changed, 9 insertions, 2 deletions
diff --git a/src/content/dependencies/generateContentHeading.js b/src/content/dependencies/generateContentHeading.js
index 1c7ef1f1..469db876 100644
--- a/src/content/dependencies/generateContentHeading.js
+++ b/src/content/dependencies/generateContentHeading.js
@@ -7,8 +7,15 @@ export default {
   }),
 
   slots: {
-    title: {type: 'html'},
-    accent: {type: 'html'},
+    title: {
+      type: 'html',
+      mutable: false,
+    },
+
+    accent: {
+      type: 'html',
+      mutable: false,
+    },
 
     color: {validate: v => v.isColor},