diff --git a/src/D7/WatchdogTrait.php b/src/D7/WatchdogTrait.php
index d50b2c07..75cea7db 100644
--- a/src/D7/WatchdogTrait.php
+++ b/src/D7/WatchdogTrait.php
@@ -52,8 +52,8 @@ public function checkWatchdog(AfterScenarioScope $scope) {
         ->execute()
         ->fetchAll();
 
-      if (!defined(WATCHDOG_WARNING)) {
-        define(WATCHDOG_WARNING, 4);
+      if (!defined('WATCHDOG_WARNING')) {
+        define('WATCHDOG_WARNING', 4);
       }
 
       if (!empty($entries)) {
diff --git a/src/D8/WatchdogTrait.php b/src/D8/WatchdogTrait.php
index 88bae328..9b5836e1 100644
--- a/src/D8/WatchdogTrait.php
+++ b/src/D8/WatchdogTrait.php
@@ -52,8 +52,8 @@ public function checkWatchdog(AfterScenarioScope $scope) {
         ->execute()
         ->fetchAll();
 
-      if (!defined(WATCHDOG_WARNING)) {
-        define(WATCHDOG_WARNING, 4);
+      if (!defined('WATCHDOG_WARNING')) {
+        define('WATCHDOG_WARNING', 4);
       }
 
       if (!empty($entries)) {