diff --git a/routes/dir/[...path].tsx b/routes/dir/[...path].tsx
index aa55b55..080d2a2 100644
--- a/routes/dir/[...path].tsx
+++ b/routes/dir/[...path].tsx
@@ -179,7 +179,6 @@ export default function DirLists(props: PageProps<DirOrFileProps>) {
     cover = searchFiles(data.files, (f) => isImageFile(f.name));
     index = searchFiles(data.files, (f) => f.name === "index.html");
     const contentFilenameCandidate = [
-      "SUMMARY.md",
       "README.md",
       "readme.md",
       "README.txt",
diff --git a/src/collect.ts b/src/collect.ts
index 3bc42be..b60413f 100644
--- a/src/collect.ts
+++ b/src/collect.ts
@@ -24,6 +24,13 @@ export interface DocCollectorOptions {
   dropContent?: boolean;
 }
 
+function isDESCFile(filename: string): boolean {
+  const filenameUpperCase = filename.toUpperCase();
+  return (filenameUpperCase === "README.MD" ||
+    filenameUpperCase === "DESCRIPTION.MD")
+}
+
+
 export class DocCollector {
   private doc_map: Map<string, Doc>;
   private options: DocCollectorOptions;
@@ -59,12 +66,15 @@ export class DocCollector {
       fileList.push(entry);
     }
 
-    if (fileList.some((entry) => entry.name === "SUMMARY.md")) {
-      const { content, metadata } = await readMarkdownDoc(
-        join(path, "SUMMARY.md"),
-      );
+    const entryName = fileList.find(x => {
+      return isDESCFile(x.name) && x.isFile
+    }
+    );
+    if (entryName) {
+      const readmePath = join(path, entryName.name);
+      const { content, metadata } = await readMarkdownDoc(readmePath);
       this.setDoc({
-        path: join(path, "SUMMARY.md"),
+        path: readmePath,
         content: content,
         attributes: metadata,
       });
@@ -123,9 +133,9 @@ export class DocCollector {
     };
   }
   async watchDir(path: string, {
-    onRemove = (_path: string) => {},
-    onAdd = (_doc: Doc) => {},
-    onChange = (_doc: Doc) => {},
+    onRemove = (_path: string) => { },
+    onAdd = (_doc: Doc) => { },
+    onChange = (_doc: Doc) => { },
     abort = undefined,
   }: {
     onRemove?: (path: string) => void | Promise<void>;
@@ -152,7 +162,7 @@ export class DocCollector {
       for (const path of event.paths) {
         const relpath = relative(Deno.cwd(), path);
         const filename = basename(relpath);
-        if (filename === "SUMMARY.md") {
+        if (isDESCFile(filename)) {
           if (event.kind === "remove") {
             this.doc_map.delete(relpath);
             await onRemove(relpath);
diff --git a/test_data/d/SUMMARY.md b/test_data/d/README.md
similarity index 100%
rename from test_data/d/SUMMARY.md
rename to test_data/d/README.md
diff --git a/test_data/e/SUMMARY.md b/test_data/e/README.md
similarity index 100%
rename from test_data/e/SUMMARY.md
rename to test_data/e/README.md
diff --git a/test_data/f/SUMMARY.md b/test_data/f/README.md
similarity index 100%
rename from test_data/f/SUMMARY.md
rename to test_data/f/README.md
diff --git a/test_data/h#1/SUMMARY.md b/test_data/h#1/README.md
similarity index 100%
rename from test_data/h#1/SUMMARY.md
rename to test_data/h#1/README.md
diff --git a/test_data/sample/README.md b/test_data/sample/readme.md
similarity index 100%
rename from test_data/sample/README.md
rename to test_data/sample/readme.md
diff --git a/test_data/한글/SUMMARY.md b/test_data/한글/README.md
similarity index 100%
rename from test_data/한글/SUMMARY.md
rename to test_data/한글/README.md