diff --git a/src/app/redux/TransactionSaga.js b/src/app/redux/TransactionSaga.js
index 10179f5..4ae994d 100644
--- a/src/app/redux/TransactionSaga.js
+++ b/src/app/redux/TransactionSaga.js
@@ -465,6 +465,8 @@ function* createPermlink(title, author, parent_author, parent_permlink) {
     // comments: re-parentauthor-parentpermlink-time
     const timeStr = new Date().toISOString().replace(/[^a-zA-Z0-9]+/g, '').toLowerCase();
     parent_permlink = parent_permlink.replace(/(-\d{8}t\d{9}z)/g, '')
+    // Periods allowed in author are not allowed in permlink.
+    parent_author = parent_author.replace(/\./g, '');
     permlink = `re-${parent_author}-${parent_permlink}-${timeStr}`
   }
   if (permlink.length > 255) {