diff --git a/classes/local/provider/expression_provider.php b/classes/local/provider/expression_provider.php
index 8461591a..8f43f847 100644
--- a/classes/local/provider/expression_provider.php
+++ b/classes/local/provider/expression_provider.php
@@ -75,6 +75,7 @@ public function getFunctions(): array { // phpcs:ignore
             ExpressionFunction::fromPhp('count', 'count'),
             ExpressionFunction::fromPhp('format_time', 'format_time'),
             ExpressionFunction::fromPhp('round', 'round'),
+            ExpressionFunction::fromPhp('floor', 'floor'),
             ExpressionFunction::fromPhp('time', 'time'),
             ExpressionFunction::fromPhp('userdate', 'userdate'),
             ExpressionFunction::fromPhp('date', 'date'),