diff --git a/index.js b/index.js
index 3803b7f..78a9752 100644
--- a/index.js
+++ b/index.js
@@ -557,7 +557,7 @@ function convertIssuesAndComments(str, item) {
     //   They all have a '#' right after the project name in the issues but we have them without in projectmap
     let strWithMigLine = addMigrationLine(str, item);
 
-    strWithMigLine.replace(userProjectRe, matched => {
+    strWithMigLine = strWithMigLine.replace(userProjectRe, matched => {
       if (matched.startsWith('@')) {
         // this is a userid
         return '@' + settings.usermap[matched.substr(1)];
@@ -631,4 +631,4 @@ function inform(msg) {
   console.log("==================================");
   console.log(msg)
   console.log("==================================");
-}
\ No newline at end of file
+}