diff --git a/src/main/java/eu/dnetlib/repo/manager/service/EmailUtilsImpl.java b/src/main/java/eu/dnetlib/repo/manager/service/EmailUtilsImpl.java
index b213810..975e62e 100644
--- a/src/main/java/eu/dnetlib/repo/manager/service/EmailUtilsImpl.java
+++ b/src/main/java/eu/dnetlib/repo/manager/service/EmailUtilsImpl.java
@@ -270,7 +270,7 @@ public class EmailUtilsImpl implements EmailUtils {
                     "to " + repository.getDatasourceType() + "[" + repository.getEnglishName() + "].\n";
 
             if (comment != null)
-                comment += "\nThe users comment was '" + comment + "'\n";
+                message += "\nThe users comment was '" + comment + "'\n";
 
             message += "A validation process for this interface against the OpenAIRE guidelines compatibility " +
                     "has been started. You will be informed in another message once the process is finished." +
@@ -305,7 +305,7 @@ public class EmailUtilsImpl implements EmailUtils {
                     "to " + repository.getDatasourceType() + "[" + repository.getEnglishName() + "].\n";
 
             if (comment != null) {
-                comment += "\n Your comment was '" + comment + "'\n";
+                message += "\n Your comment was '" + comment + "'\n";
             }
 
             message += "A validation process for this interface against the OpenAIRE guidelines compatibility " +
@@ -710,7 +710,7 @@ public class EmailUtilsImpl implements EmailUtils {
                     "for " + repository.getDatasourceType() + "[" + repository.getEnglishName() + "].\n";
 
             if (comment != null)
-                comment += "\nThe users comment was '" + comment + "'\n";
+                message += "\nThe users comment was '" + comment + "'\n";
 
             message += "A new iteration process of the validation against the OpenAIRE guidelines compatibility has been started.\n\n" +
                     "User Contact: " + authentication.getName() + " (" + ((OIDCAuthenticationToken) authentication).getUserInfo().getEmail() + ")" +
@@ -744,7 +744,7 @@ public class EmailUtilsImpl implements EmailUtils {
                     "for " + repository.getDatasourceType() + "[" + repository.getEnglishName() + "].\n";
 
             if (comment != null) {
-                comment += "\n Your comment was '" + comment + "'\n";
+                message += "\n Your comment was '" + comment + "'\n";
             }
 
             message += "A new iteration process of the validation against the OpenAIRE guidelines compatibility has been started.\n\n" +