diff --git a/lib/api_tree.php b/lib/api_tree.php
index 9a5e692ec..5f9cbafc1 100644
--- a/lib/api_tree.php
+++ b/lib/api_tree.php
@@ -174,7 +174,7 @@ function api_tree_get_lock($lockname, $timeout = 10) {
 	while ($count < 5) {
 		if (register_process('tree_lock', $lockname, 0, $timeout)) {
 			return true;
-		} else
+		} else {
 			$count++;
 			sleep(1);
 		}