diff --git a/include/datetime.php b/include/datetime.php
index 53455d455..df53c01aa 100644
--- a/include/datetime.php
+++ b/include/datetime.php
@@ -193,7 +193,7 @@ function dob($dob)
 	$o = replace_macros(get_markup_template("field_input.tpl"), [
 		'$field' => [
 			'dob',
-			t('Birthday:'),
+			L10n::t('Birthday:'),
 			$value,
 			(((intval($age)) > 0 ) ? L10n::t('Age: ') . $age : ""),
 			'',
diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
index 5c9a0693b..57bba3595 100644
--- a/mod/dfrn_request.php
+++ b/mod/dfrn_request.php
@@ -639,7 +639,7 @@ function dfrn_request_content(App $a)
 		$page_desc = L10n::t("Please enter your 'Identity Address' from one of the following supported communications networks:");
 
 		$invite_desc = sprintf(
-			t('If you are not yet a member of the free social web, <a href="%s">follow this link to find a public Friendica site and join us today</a>.'),
+			L10n::t('If you are not yet a member of the free social web, <a href="%s">follow this link to find a public Friendica site and join us today</a>.'),
 			get_server() . '/servers'
 		);
 
diff --git a/mod/install.php b/mod/install.php
index 3255bc6d0..76ecdfd9b 100644
--- a/mod/install.php
+++ b/mod/install.php
@@ -545,7 +545,7 @@ function load_database() {
 function what_next() {
 	$baseurl = System::baseUrl();
 	return
-		t('<h1>What next</h1>')
+		L10n::t('<h1>What next</h1>')
 		."<p>".L10n::t('IMPORTANT: You will need to [manually] setup a scheduled task for the worker.')
 		.L10n::t('Please see the file "INSTALL.txt".')
 		."</p><p>"
diff --git a/util/extract.php b/util/extract.php
index b3aa12ebf..13151bc96 100644
--- a/util/extract.php
+++ b/util/extract.php
@@ -9,8 +9,8 @@
 	foreach($files as $file) {
 		$str = file_get_contents($file);
 
-		$pat = '| t\(([^\)]*)\)|';
-		$patt = '| tt\(([^\)]*)\)|';
+		$pat = '| L10n::t\(([^\)]*)\)|';
+		$patt = '| L10n::tt\(([^\)]*)\)|';
 
 		preg_match_all($pat,$str,$matches);
 		preg_match_all($patt, $str, $matchestt);