diff --git a/src/babel/types/validators.js b/src/babel/types/validators.js
index d532bfaa3b..e984c2bf5a 100644
--- a/src/babel/types/validators.js
+++ b/src/babel/types/validators.js
@@ -147,7 +147,9 @@ export function isVar(node: Object): boolean {
  */
 
 export function isSpecifierDefault(specifier: Object): boolean {
-  return t.isImportDefaultSpecifier(specifier) || t.isIdentifier(specifier.imported || specifier.exported, { name: "default" });
+  return t.isImportDefaultSpecifier(specifier) ||
+         t.isExportDefaultSpecifier(specifier) ||
+         t.isIdentifier(specifier.imported || specifier.exported, { name: "default" });
 }
 
 /**