diff --git a/ext/webstorage/01_webstorage.js b/ext/webstorage/01_webstorage.js
index 19aca532a08c11..12abea8387ca3b 100644
--- a/ext/webstorage/01_webstorage.js
+++ b/ext/webstorage/01_webstorage.js
@@ -3,7 +3,7 @@
 /// <reference path="../../core/internal.d.ts" />
 
 import { primordials } from "ext:core/mod.js";
-import { Storage } from "ext:core/ops";
+import { op_webstorage_iterate_keys, Storage } from "ext:core/ops";
 const {
   SymbolFor,
   ObjectFromEntries,
@@ -69,7 +69,7 @@ function createStorage(persistent) {
     },
 
     ownKeys() {
-      return storage.iterateKeys();
+      return op_webstorage_iterate_keys(storage);
     },
 
     getOwnPropertyDescriptor(target, key) {
diff --git a/ext/webstorage/lib.rs b/ext/webstorage/lib.rs
index 149e1f83ea20f1..c3e4c465969ed3 100644
--- a/ext/webstorage/lib.rs
+++ b/ext/webstorage/lib.rs
@@ -32,6 +32,9 @@ const MAX_STORAGE_BYTES: usize = 10 * 1024 * 1024;
 
 deno_core::extension!(deno_webstorage,
   deps = [ deno_webidl ],
+  ops = [
+    op_webstorage_iterate_keys,
+  ],
   objects = [
     Storage
   ],
@@ -224,21 +227,21 @@ impl Storage {
 
     Ok(())
   }
+}
 
-  #[method]
-  #[serde]
-  fn iterate_keys(
-    &self,
-    state: &mut OpState,
-  ) -> Result<Vec<String>, WebStorageError> {
-    let conn = get_webstorage(state, self.persistent)?;
+#[op2]
+#[serde]
+fn op_webstorage_iterate_keys(
+  #[cppgc] storage: &Storage,
+  state: &mut OpState,
+) -> Result<Vec<String>, WebStorageError> {
+  let conn = get_webstorage(state, storage.persistent)?;
 
-    let mut stmt = conn.prepare_cached("SELECT key FROM data")?;
-    let keys = stmt
-      .query_map(params![], |row| row.get::<_, String>(0))?
-      .map(|r| r.unwrap())
-      .collect();
+  let mut stmt = conn.prepare_cached("SELECT key FROM data")?;
+  let keys = stmt
+    .query_map(params![], |row| row.get::<_, String>(0))?
+    .map(|r| r.unwrap())
+    .collect();
 
-    Ok(keys)
-  }
+  Ok(keys)
 }