diff --git a/Output/StreamOutput.php b/Output/StreamOutput.php
index 84a7fa734..b46f4d2ca 100644
--- a/Output/StreamOutput.php
+++ b/Output/StreamOutput.php
@@ -90,7 +90,7 @@ protected function doWrite(string $message, bool $newline): void
     protected function hasColorSupport(): bool
     {
         // Follow https://no-color.org/
-        if (isset($_SERVER['NO_COLOR']) || false !== getenv('NO_COLOR')) {
+        if ('' !== ($_SERVER['NO_COLOR'] ?? getenv('NO_COLOR') ?: '')) {
             return false;
         }