diff --git a/src/tsdoc-to-ast.ts b/src/tsdoc-to-ast.ts
index 3975046..dc92c8f 100644
--- a/src/tsdoc-to-ast.ts
+++ b/src/tsdoc-to-ast.ts
@@ -4,7 +4,7 @@ import type { AnyTxtNode, TxtParentNode } from '@textlint/ast-node-types';
 import { ASTNodeTypes } from '@textlint/ast-node-types';
 import { DocExcerpt, TSDocParser } from '@microsoft/tsdoc';
 
-import { isNonNullable } from './utility';
+import { isNonNullable, isTxtTextNode } from './utility';
 
 /**
  * parse comment as TSDoc
@@ -160,7 +160,9 @@ function traverse(docNode: DocNode, baseNode: AnyTxtNode): AnyTxtNode | null {
       }
     }
 
-    result.raw = children.map((child) => child.value || child.raw).join('');
+    result.raw = children
+      .map((child) => (isTxtTextNode(child) ? child.value : child.raw))
+      .join('');
   }
 
   return result;
diff --git a/src/utility.ts b/src/utility.ts
index 8d887ba..158dd5d 100644
--- a/src/utility.ts
+++ b/src/utility.ts
@@ -1,3 +1,9 @@
+import {
+  type AnyTxtNode,
+  type TxtParentNode,
+  type TxtTextNode
+} from '@textlint/ast-node-types';
+
 /**
  * filter out nullable
  *
@@ -9,3 +15,13 @@ export function isNonNullable<T>(
 ): value is NonNullable<T> {
   return value !== null && value !== undefined;
 }
+
+/***/
+export function isTxtParentNode(value: AnyTxtNode): value is TxtParentNode {
+  return 'children' in value && Array.isArray(value.children);
+}
+
+/***/
+export function isTxtTextNode(value: AnyTxtNode): value is TxtTextNode {
+  return 'value' in value && typeof value.value === 'string';
+}
diff --git a/tsconfig.json b/tsconfig.json
index 6f3c7a8..9b74ba4 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,7 +5,8 @@
     "module": "CommonJS",
     "outDir": "./dist",
     "sourceMap": true,
-    "target": "ESNext"
+    "target": "ESNext",
+    "verbatimModuleSyntax": false
   },
   "include": [
     "./src/*.ts"