diff --git a/src/Converter.js b/src/Converter.js
index ecea381..61dbd92 100644
--- a/src/Converter.js
+++ b/src/Converter.js
@@ -72,6 +72,10 @@ export default class Converter {
     let lastNode6 = ast6.body[ast6.body.length - 1];
 
     for (let node6 of ast6.body) {
+      if (node6 !== lastNode6) {
+        node6.trailingComments = [];
+      }
+
       if (['ExportNamedDeclaration', 'ExportDefaultDeclaration'].includes(node6.type)) {
         let exportNode = node6;
         node6 = exportNode.declaration;
@@ -79,10 +83,6 @@ export default class Converter {
         node6.trailingComments = exportNode.trailingComments;
       }
 
-      if (node6 !== lastNode6) {
-        node6.trailingComments = [];
-      }
-
       switch (node6.type) {
         case 'ClassDeclaration':
           let node5 = new FunctionDeclarationNode(node6.id.name);
@@ -95,7 +95,6 @@ export default class Converter {
         default:
           if (node6.params) node6.params = [];
           if (node6.defaults) node6.defaults = [];
-          node6.trailingComments = [];
           ast5.body.push(node6);
           break;
       }
diff --git a/test/expect/sample.js b/test/expect/sample.js
index 0412dc3..d30d99e 100644
--- a/test/expect/sample.js
+++ b/test/expect/sample.js
@@ -71,4 +71,6 @@ var myVar = 100;
  * this is myMember.
  * @type {number}
  */
-window.myMember = 100;
+window.myMember = 100;    /**
+ * @typedef {number|string} TypeX
+ */
diff --git a/test/fixture/sample.js b/test/fixture/sample.js
index 078f3ae..54e8122 100644
--- a/test/fixture/sample.js
+++ b/test/fixture/sample.js
@@ -99,3 +99,7 @@ export var myVar = 100;
  * @type {number}
  */
 window.myMember = 100;
+
+/**
+ * @typedef {number|string} TypeX
+ */