diff --git a/dwpost/dwpost.php b/dwpost/dwpost.php
index fe4a53ef..6a9cfe52 100644
--- a/dwpost/dwpost.php
+++ b/dwpost/dwpost.php
@@ -180,7 +180,6 @@ function dwpost_send(&$a,&$b) {
 	if($dw_username && $dw_password && $dw_blog) {
 
 		require_once('include/bbcode.php');
-		require_once('include/datetime.php');
 
 		$title = $b['title'];
 		$post = bbcode($b['body']);
diff --git a/ljpost/ljpost.php b/ljpost/ljpost.php
index 2a14172f..de62c976 100644
--- a/ljpost/ljpost.php
+++ b/ljpost/ljpost.php
@@ -180,7 +180,6 @@ function ljpost_send(&$a,&$b) {
 	if($lj_username && $lj_password && $lj_blog) {
 
 		require_once('include/bbcode.php');
-		require_once('include/datetime.php');
 
 		$title = xmlify($b['title']);
 		$post = bbcode($b['body']);
diff --git a/membersince/membersince.php b/membersince/membersince.php
index c1d38b83..63482579 100644
--- a/membersince/membersince.php
+++ b/membersince/membersince.php
@@ -11,8 +11,6 @@ use Friendica\Core\Addon;
 use Friendica\Core\L10n;
 use Friendica\Util\DateTimeFormat;
 
-require_once 'include/datetime.php';
-
 function membersince_install()
 {
 	Addon::registerHook('profile_advanced', 'addon/membersince/membersince.php', 'membersince_display');