diff --git a/Terminal.php b/Terminal.php
index b91e8afc5..948ced4ad 100644
--- a/Terminal.php
+++ b/Terminal.php
@@ -158,8 +158,7 @@ private static function readFromProcess(string $command): ?string
 
         $cp = \function_exists('sapi_windows_cp_set') ? sapi_windows_cp_get() : 0;
 
-        $process = proc_open($command, $descriptorspec, $pipes, null, null, ['suppress_errors' => true]);
-        if (!\is_resource($process)) {
+        if (!$process = proc_open($command, $descriptorspec, $pipes, null, null, ['suppress_errors' => true])) {
             return null;
         }
 
diff --git a/Tests/Formatter/OutputFormatterTest.php b/Tests/Formatter/OutputFormatterTest.php
index 21905f475..f65e0a15d 100644
--- a/Tests/Formatter/OutputFormatterTest.php
+++ b/Tests/Formatter/OutputFormatterTest.php
@@ -200,7 +200,7 @@ public static function provideInlineStyleOptionsCases()
         ];
     }
 
-    public function provideInlineStyleTagsWithUnknownOptions()
+    public static function provideInlineStyleTagsWithUnknownOptions()
     {
         return [
             ['<options=abc;>', 'abc'],