diff --git a/code/lib/codemod/src/index.ts b/code/lib/codemod/src/index.ts
index abad474a16dc..22e453c26e75 100644
--- a/code/lib/codemod/src/index.ts
+++ b/code/lib/codemod/src/index.ts
@@ -6,6 +6,7 @@ import { extname, join } from 'node:path';
 import { resolvePackageDir } from 'storybook/internal/common';
 
 import { sync as spawnSync } from 'cross-spawn';
+import { normalize } from 'pathe';
 import { glob as tinyglobby } from 'tinyglobby';
 
 import { jscodeshiftToPrettierParser } from './lib/utils';
@@ -60,7 +61,8 @@ export async function runCodemod(
     }
   }
 
-  const files = await tinyglobby([glob, '!**/node_modules', '!**/dist']);
+  // Normalize the glob pattern to use forward slashes (required for glob patterns on Windows)
+  const files = await tinyglobby([normalize(glob), '!**/node_modules', '!**/dist']);
   const extensions = new Set(files.map((file) => extname(file).slice(1)));
   const commaSeparatedExtensions = Array.from(extensions).join(',');