diff --git a/src/Database/Models/Organisation.php b/src/Database/Models/Organisation.php
index 9737969..a607e7f 100644
--- a/src/Database/Models/Organisation.php
+++ b/src/Database/Models/Organisation.php
@@ -199,14 +199,18 @@ class Organisation extends Model implements OrganisationInterface
         };
 
         // Move all the users from this organisation to the target
-        $this->members()->each(function ($user) use ($target, $activityLogger, $currentUser, $logEntry) {
-            $this->members()->detach($user); // NOTE: Should this record be retained? Or is the activity log enough of an audit?
-            $target->members()->attach($user, ['flag_admin' => false]);
-            $logEntry($activityLogger, $currentUser, $user, $target);
-        });
         $this->administrators()->each(function ($user) use ($target, $activityLogger, $currentUser, $logEntry) {
             $this->administrators()->detach($user); // NOTE: Should this record be retained? Or is the activity log enough of an audit?
-            $target->administrators()->attach($user, ['flag_admin' => true]);
+            if (!$target->administrators()->find($user->id) && !$target->members()->find($user->id)) {
+                $target->administrators()->attach($user, ['flag_admin' => true]);
+            }
+            $logEntry($activityLogger, $currentUser, $user, $target);
+        });
+        $this->members()->each(function ($user) use ($target, $activityLogger, $currentUser, $logEntry) {
+            $this->members()->detach($user); // NOTE: Should this record be retained? Or is the activity log enough of an audit?
+            if (!$target->administrators()->find($user->id) && !$target->members()->find($user->id)) {
+                $target->members()->attach($user, ['flag_admin' => false]);
+            }
             $logEntry($activityLogger, $currentUser, $user, $target);
         });
         $this->save();