diff --git a/classes/User.php b/classes/User.php
index 2c256301c2..1928a3c62f 100644
--- a/classes/User.php
+++ b/classes/User.php
@@ -548,7 +548,10 @@ class User extends Memcached_DataObject
             return false;
         }
 
-        Subscription::cancel($other, $this->getProfile());
+        $self = $this->getProfile();
+        if (Subscription::exists($other, $self)) {
+            Subscription::cancel($other, $self);
+        }
 
         $block->query('COMMIT');