diff --git a/src/index.ts b/src/index.ts
index 11b52b3..fe220d6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -71,9 +71,9 @@ export async function resolve(
 export async function dynamicInstantiate(url: string) {
   const moduleUrl = new URL(url);
 
-  const [nodeModulesBase, specifier] = moduleUrl.pathname.split(
-    'node_modules/',
-  );
+  const pathParts = moduleUrl.pathname.split('node_modules/');
+  const specifier = pathParts.pop()!;
+  const nodeModulesBase = pathParts.join('node_modules/');
 
   const nodeModuleUrl = new URL('node_modules', pathToFileURL(nodeModulesBase));