diff --git a/.changeset/nervous-students-happen.md b/.changeset/nervous-students-happen.md
new file mode 100644
index 00000000..c11b55b1
--- /dev/null
+++ b/.changeset/nervous-students-happen.md
@@ -0,0 +1,5 @@
+---
+"@eventcatalog/core": patch
+---
+
+fix(core): fixed issue for new sidebar for windows
diff --git a/eventcatalog/src/components/SideNav/TreeView/getTreeView.ts b/eventcatalog/src/components/SideNav/TreeView/getTreeView.ts
index 8112f758..c703cde6 100644
--- a/eventcatalog/src/components/SideNav/TreeView/getTreeView.ts
+++ b/eventcatalog/src/components/SideNav/TreeView/getTreeView.ts
@@ -1,5 +1,6 @@
 import fs from 'fs';
 import path from 'path';
+import os from 'node:os';
 import gm from 'gray-matter';
 import { globSync } from 'glob';
 import type { CollectionKey } from 'astro:content';
@@ -49,7 +50,7 @@ function buildTreeOfDir(directory: string, parentNode: TreeNode, options: { igno
 
   const resourceType = getResourceType(directory);
 
-  const markdownFiles = globSync(path.join(directory, '/*.md'));
+  const markdownFiles = globSync(path.join(directory, '/*.md'), { windowsPathsNoEscape: os.platform() === 'win32' });
   const isResourceIgnored = options?.ignore && resourceType && options.ignore.includes(resourceType);
 
   if (markdownFiles.length > 0 && !isResourceIgnored) {