diff --git a/client/src/backend/components/authoring/EditSectionForm/index.js b/client/src/backend/components/authoring/EditSectionForm/index.js
index 956f0e4168..a28e483ada 100644
--- a/client/src/backend/components/authoring/EditSectionForm/index.js
+++ b/client/src/backend/components/authoring/EditSectionForm/index.js
@@ -108,8 +108,9 @@ export default function EditSectionForm({
   }, [initialSlateValue, t]);
 
   const stylesheetData = useFromStore(`entityStore.entities.stylesheets`);
+  const stylesheetDataKeys = stylesheetData ? Object.keys(stylesheetData) : [];
 
-  const appliedStylesheets = Object.keys(stylesheetData)
+  const appliedStylesheets = stylesheetDataKeys
     .filter(id => appliesToAllStylesheets.find(s => s === id))
     .map(id => stylesheetData[id]);