diff --git a/denops/ddc/deps.ts b/denops/ddc/deps.ts
index 18b8bf9..005288e 100644
--- a/denops/ddc/deps.ts
+++ b/denops/ddc/deps.ts
@@ -11,16 +11,20 @@ export * as op from "https://deno.land/x/denops_std@v5.0.1/option/mod.ts";
 export * as fn from "https://deno.land/x/denops_std@v5.0.1/function/mod.ts";
 export * as vars from "https://deno.land/x/denops_std@v5.0.1/variable/mod.ts";
 export * as autocmd from "https://deno.land/x/denops_std@v5.0.1/autocmd/mod.ts";
-export * as base64 from "https://deno.land/std@0.203.0/encoding/base64.ts";
+export * as base64 from "https://deno.land/std@0.204.0/encoding/base64.ts";
 export {
   assertEquals,
   equal,
-} from "https://deno.land/std@0.203.0/assert/mod.ts";
-export { parse, toFileUrl } from "https://deno.land/std@0.203.0/path/mod.ts";
+} from "https://deno.land/std@0.204.0/assert/mod.ts";
+export {
+  basename,
+  parse,
+  toFileUrl,
+} from "https://deno.land/std@0.204.0/path/mod.ts";
 export {
   deadline,
   DeadlineError,
-} from "https://deno.land/std@0.203.0/async/mod.ts";
+} from "https://deno.land/std@0.204.0/async/mod.ts";
 export { TimeoutError } from "https://deno.land/x/msgpack_rpc@v4.0.1/response_waiter.ts";
 export { spy } from "https://deno.land/x/mock@0.15.2/mock.ts";
 export { ensure, is } from "https://deno.land/x/unknownutil@v3.9.0/mod.ts";
diff --git a/denops/ddc/loader.ts b/denops/ddc/loader.ts
index 4d3391d..3f1634b 100644
--- a/denops/ddc/loader.ts
+++ b/denops/ddc/loader.ts
@@ -10,7 +10,7 @@ import {
   SourceName,
   UiName,
 } from "./types.ts";
-import { Denops, fn, Lock, op, parse, toFileUrl } from "./deps.ts";
+import { basename, Denops, fn, Lock, op, parse, toFileUrl } from "./deps.ts";
 
 export class Loader {
   private uis: Record<UiName, BaseUi<BaseUiParams>> = {};
@@ -23,23 +23,30 @@ export class Loader {
   };
   private checkPaths: Record<string, boolean> = {};
   private registerLock = new Lock(0);
+  private cachedPaths: Record<string, string> = {};
+  private prevRuntimepath = "";
 
   async autoload(
     denops: Denops,
     type: DdcExtType,
     name: string,
   ) {
-    const paths = await globpath(
-      denops,
-      `denops/@ddc-${type}s/`,
-      this.getAlias(type, name) ?? name,
-    );
+    const runtimepath = await op.runtimepath.getGlobal(denops);
+    if (runtimepath !== this.prevRuntimepath) {
+      this.cachedPaths = await globpath(
+        denops,
+        "denops/@ddc-*s",
+      );
+      this.prevRuntimepath = runtimepath;
+    }
+
+    const key = `@ddc-${type}s/${this.getAlias(type, name) ?? name}`;
 
-    if (paths.length === 0) {
+    if (!this.cachedPaths[key]) {
       return;
     }
 
-    await this.registerPath(type, paths[0]);
+    await this.registerPath(type, this.cachedPaths[key]);
   }
 
   registerAlias(type: DdcExtType, alias: string, base: string) {
@@ -119,28 +126,27 @@ export class Loader {
 async function globpath(
   denops: Denops,
   search: string,
-  file: string,
-): Promise<string[]> {
+): Promise<Record<string, string>> {
   const runtimepath = await op.runtimepath.getGlobal(denops);
 
-  const check: Record<string, boolean> = {};
-  const paths: string[] = [];
+  const paths: Record<string, string> = {};
   const glob = await fn.globpath(
     denops,
     runtimepath,
-    search + file + ".ts",
+    search + "/*.ts",
     1,
     1,
   );
 
   for (const path of glob) {
     // Skip already added name.
-    if (parse(path).name in check) {
+    const parsed = parse(path);
+    const key = `${basename(parsed.dir)}/${parsed.name}`;
+    if (key in paths) {
       continue;
     }
 
-    paths.push(path);
-    check[parse(path).name] = true;
+    paths[key] = path;
   }
 
   return paths;