diff --git a/src/Protocol/DFRN.php b/src/Protocol/DFRN.php
index a3844a36e..eb2822894 100644
--- a/src/Protocol/DFRN.php
+++ b/src/Protocol/DFRN.php
@@ -1467,33 +1467,33 @@ class DFRN
 		// Check for duplicates
 		$r = q(
 			"SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
-			intval($contact["uid"]),
-			intval($contact["id"]),
+			intval($contact['uid']),
+			intval($contact['id']),
 			dbesc(DateTimeFormat::utc($birthday)),
-			dbesc("birthday")
+			dbesc('birthday')
 		);
 
 		if (DBM::is_result($r)) {
 			return;
 		}
 
-		logger("updating birthday: ".$birthday." for contact ".$contact["id"]);
+		logger('updating birthday: ' . $birthday . ' for contact ' . $contact['id']);
 
-		$bdtext = L10n::t("%s\'s birthday", $contact["name"]);
-		$bdtext2 = L10n::t("Happy Birthday %s", " [url=".$contact["url"]."]".$contact["name"]."[/url]");
+		$bdtext = L10n::t('%s\'s birthday', $contact['name']);
+		$bdtext2 = L10n::t('Happy Birthday %s', ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]');
 
 		$r = q(
 			"INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`)
 			VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s') ",
-			intval($contact["uid"]),
-			intval($contact["id"]),
+			intval($contact['uid']),
+			intval($contact['id']),
 			dbesc(DateTimeFormat::utcNow()),
 			dbesc(DateTimeFormat::utcNow()),
 			dbesc(DateTimeFormat::utc($birthday)),
-			dbesc(DateTimeFormat::utc($birthday . " + 1 day ")),
+			dbesc(DateTimeFormat::utc($birthday . ' + 1 day ')),
 			dbesc($bdtext),
 			dbesc($bdtext2),
-			dbesc("birthday")
+			dbesc('birthday')
 		);
 	}