diff --git a/src/main.ts b/src/main.ts
index e0a35c9..25af864 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -271,10 +271,11 @@ export default class OmnivorePlugin extends Plugin {
               const existingContentWithoutFrontmatter =
                 removeFrontMatterFromContent(existingContent);
               // get front matter from content
-              const existingFrontMatter =
-                parseFrontMatterFromContent(existingContent);
+              let existingFrontMatter =
+                parseFrontMatterFromContent(existingContent) || [];
               if (!existingFrontMatter || !Array.isArray(existingFrontMatter)) {
-                throw new Error("Front matter does not exist in the note");
+                // convert front matter to array
+                existingFrontMatter = [existingFrontMatter];
               }
               const newFrontMatter = parseFrontMatterFromContent(content);
               if (
diff --git a/src/util.ts b/src/util.ts
index 49d1850..84398ae 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -140,16 +140,14 @@ export const formatHighlightQuote = (
 };
 
 export const findFrontMatterIndex = (
-  frontMatter: { id: string }[],
+  frontMatter: any[],
   id: string
 ): number => {
   // find index of front matter with matching id
   return frontMatter.findIndex((fm) => fm.id == id);
 };
 
-export const parseFrontMatterFromContent = (
-  content: string
-): unknown | undefined => {
+export const parseFrontMatterFromContent = (content: string) => {
   // get front matter yaml from content
   const frontMatter = content.match(/^---\n(.*?)\n---/s);
   if (!frontMatter) {