diff --git a/flextype/core/Entries.php b/flextype/core/Entries.php
index 1c6d25fae9..47b11eaa81 100755
--- a/flextype/core/Entries.php
+++ b/flextype/core/Entries.php
@@ -27,6 +27,7 @@
 use function str_replace;
 use function strpos;
 use function time;
+use function strtotime;
 
 class Entries
 {