diff --git a/plugins/Irc/classes/Irc_waiting_message.php b/plugins/Irc/classes/Irc_waiting_message.php
index eefd904985..c3fefc8784 100644
--- a/plugins/Irc/classes/Irc_waiting_message.php
+++ b/plugins/Irc/classes/Irc_waiting_message.php
@@ -83,7 +83,7 @@ class Irc_waiting_message extends Managed_DataObject {
         if (!$result) {
             // TRANS: Exception thrown when an IRC attempts count could not be updated.
             // TRANS: %d is the object ID for which the count could not be updated.
-            throw Exception(sprintf(_m('Could not increment attempts count for %d.'), $this->id));
+            throw new Exception(sprintf(_m('Could not increment attempts count for %d.'), $this->id));
         }
     }
 
diff --git a/plugins/Sample/classes/User_greeting_count.php b/plugins/Sample/classes/User_greeting_count.php
index 3da00b2d1a..6196820af6 100644
--- a/plugins/Sample/classes/User_greeting_count.php
+++ b/plugins/Sample/classes/User_greeting_count.php
@@ -101,7 +101,7 @@ class User_greeting_count extends Managed_DataObject
             if (!$result) {
                 // TRANS: Exception thrown when the user greeting count could not be saved in the database.
                 // TRANS: %d is a user ID (number).
-                throw Exception(sprintf(_m('Could not save new greeting count for %d.'),
+                throw new Exception(sprintf(_m('Could not save new greeting count for %d.'),
                                         $user_id));
             }
         } else {
@@ -114,7 +114,7 @@ class User_greeting_count extends Managed_DataObject
             if (!$result) {
                 // TRANS: Exception thrown when the user greeting count could not be saved in the database.
                 // TRANS: %d is a user ID (number).
-                throw Exception(sprintf(_m('Could not increment greeting count for %d.'),
+                throw new Exception(sprintf(_m('Could not increment greeting count for %d.'),
                                         $user_id));
             }
         }