diff --git a/templates/email/email_assigned_invitation_officer.html b/templates/email/email_assigned_invitation_officer.html
index fca940e1e54fb4f0c260efb3cb2a73a5cad633db..18c4ceed38ec39faea4cbdeb41adcae9ea1a1d73 100644
--- a/templates/email/email_assigned_invitation_officer.html
+++ b/templates/email/email_assigned_invitation_officer.html
@@ -1,5 +1,5 @@
 <p>
-    Dear {{ stream.invitations_officer.user.last }},
+    Dear {{ stream.invitations_officer.user.last_name }},
 </p>
 <p>
     You are now assigned as Invitations Officer to the stream
diff --git a/templates/email/email_assigned_invitation_officer.txt b/templates/email/email_assigned_invitation_officer.txt
index 4764909efb9e3666b4733e81f7f8ccd0e200ebf4..23103d8d37c01657006538e0fbe586f843bb87da 100644
--- a/templates/email/email_assigned_invitation_officer.txt
+++ b/templates/email/email_assigned_invitation_officer.txt
@@ -1,4 +1,4 @@
-Dear {{ stream.invitations_officer.user.last }},
+Dear {{ stream.invitations_officer.user.last_name }},
 \n
 \n
 You are now assigned as Invitations Officer to the stream
diff --git a/templates/email/email_assigned_production_officer.html b/templates/email/email_assigned_production_officer.html
index ce4a42f49bf3eab52f5d684a3eddf9fb1e9f7acb..b6a474c49b15f6a73e33510e6dddf4481abfc841 100644
--- a/templates/email/email_assigned_production_officer.html
+++ b/templates/email/email_assigned_production_officer.html
@@ -1,5 +1,5 @@
 <p>
-    Dear {{ stream.invitations_officer.user.last }},
+    Dear {{ stream.invitations_officer.user.last_name }},
 </p>
 <p>
     You are now assigned as Production Officer to the stream
diff --git a/templates/email/email_assigned_production_officer.txt b/templates/email/email_assigned_production_officer.txt
index f8229b5a70a2026c7ce702bcf90c4317294530be..60c80841b0abbf7cf207abab747e57e7d982ca80 100644
--- a/templates/email/email_assigned_production_officer.txt
+++ b/templates/email/email_assigned_production_officer.txt
@@ -1,4 +1,4 @@
-Dear {{ stream.invitations_officer.user.last }},
+Dear {{ stream.invitations_officer.user.last_name }},
 \n
 \n
 You are now assigned as Production Officer to the stream
diff --git a/templates/email/email_assigned_supervisor.html b/templates/email/email_assigned_supervisor.html
index 8932d22cda75dfbf5d05a08d78e816b8ffb9b9ed..c2df2ad3212a9004f4bdcceb7043bcf9e9663181 100644
--- a/templates/email/email_assigned_supervisor.html
+++ b/templates/email/email_assigned_supervisor.html
@@ -1,5 +1,5 @@
 <p>
-    Dear {{ stream.invitations_officer.user.last }},
+    Dear {{ stream.invitations_officer.user.last_name }},
 </p>
 <p>
     You are now assigned as Production Supervisor to the stream
diff --git a/templates/email/email_assigned_supervisor.txt b/templates/email/email_assigned_supervisor.txt
index f161973a9d6bc1efff7eeb298a817f95d398c849..9a4c201acb1be95a6fb7050f117ec804de4b202f 100644
--- a/templates/email/email_assigned_supervisor.txt
+++ b/templates/email/email_assigned_supervisor.txt
@@ -1,4 +1,4 @@
-Dear {{ stream.invitations_officer.user.last }},
+Dear {{ stream.invitations_officer.user.last_name }},
 \n
 \n
 You are now assigned as Production Supervisor to the stream