diff --git a/twitter/twitter.php b/twitter/twitter.php
index 6a4df877..c443f0c2 100644
--- a/twitter/twitter.php
+++ b/twitter/twitter.php
@@ -176,6 +176,11 @@ function twitter_unfollow(App $a, array &$hook_data)
 function twitter_block(App $a, array &$hook_data)
 {
 	$hook_data['result'] = twitter_api_contact('blocks/create', $hook_data['contact'], $hook_data['uid']);
+
+	if ($hook_data['result'] === true) {
+		Contact::removeFollower($hook_data['contact']);
+		Contact::unfollow($hook_data['contact']['id'], $hook_data['uid']);
+	}
 }
 
 function twitter_unblock(App $a, array &$hook_data)