diff --git a/projects/packages/waf/tests/php/integration/test-waf-blocklog-manager.php b/projects/packages/waf/tests/php/integration/test-waf-blocklog-manager.php
index f3f3a7071688c..d1e0b9ba59b96 100644
--- a/projects/packages/waf/tests/php/integration/test-waf-blocklog-manager.php
+++ b/projects/packages/waf/tests/php/integration/test-waf-blocklog-manager.php
@@ -29,7 +29,7 @@ protected function set_up() {
 		Waf_Constants::define_share_data();
 
 		// Simulate a blocklog entry to trigger option update
-		$test_rule_id = 1;
+		$test_rule_id = '1';
 		$test_reason  = 'Test block reason for file';
 		Waf_Blocklog_Manager::write_blocklog( $test_rule_id, $test_reason );
 	}