diff --git a/DeprecationErrorHandler.php b/DeprecationErrorHandler.php
index 589a1d7..6682f42 100644
--- a/DeprecationErrorHandler.php
+++ b/DeprecationErrorHandler.php
@@ -407,7 +407,7 @@ private static function hasColorSupport(): bool
         }
 
         // Follow https://no-color.org/
-        if ('' !== ($_SERVER['NO_COLOR'] ?? getenv('NO_COLOR') ?: '')) {
+        if ('' !== (($_SERVER['NO_COLOR'] ?? getenv('NO_COLOR'))[0] ?? '')) {
             return false;
         }