diff --git a/index.ts b/index.ts
index 2006ff18..d29e1aed 100644
--- a/index.ts
+++ b/index.ts
@@ -1,4 +1,5 @@
 import * as path from "node:path";
+import * as url from "node:url";
 import { defineCommand, runMain } from "citty";
 import { consola } from "consola";
 import packageJson from "./package.json" with { type: "json" };
@@ -276,23 +277,23 @@ const generateCommand = defineCommand({
     if (args.debug) consola.level = Number.MAX_SAFE_INTEGER;
     if (args.silent) consola.level = 0;
 
-    let customConfig = null;
-    let customConfigPath: string | undefined;
+    let customConfig;
 
     if (args["custom-config"]) {
       try {
-        customConfigPath = path.resolve(process.cwd(), args["custom-config"]);
+        const customConfigPath = url
+          .pathToFileURL(path.resolve(process.cwd(), args["custom-config"]))
+          .toString();
         customConfig = await import(customConfigPath);
         customConfig = customConfig.default || customConfig;
+        if (customConfig) {
+          consola.info(`Found custom config at: ${customConfigPath}`);
+        }
       } catch (error) {
         consola.error("Error loading custom config:", error);
       }
     }
 
-    if (customConfig) {
-      consola.info(`Found custom config at: ${customConfigPath}`);
-    }
-
     await generateApi({
       addReadonly: args["add-readonly"],
       anotherArrayType: args["another-array-type"],