diff --git a/Spawn/Future.php b/Spawn/Future.php
index cf17fe3..672e23d 100644
--- a/Spawn/Future.php
+++ b/Spawn/Future.php
@@ -166,7 +166,6 @@ public function close()
     $this->processOutput = null;
     $this->processError = null;
     $this->process = null;
-    $this->status = null;
     $this->task = null;
     $this->signal = null;
     unset($this->messages);
@@ -488,6 +487,7 @@ public function stop(int $signal = \SIGKILL): FutureInterface
       $this->process->stop(0, $signal);
     }
 
+    $this->status = false;
     return $this;
   }
 
diff --git a/tests/SpawnTest.php b/tests/SpawnTest.php
index 0e5cd55..1c3060e 100644
--- a/tests/SpawnTest.php
+++ b/tests/SpawnTest.php
@@ -252,7 +252,7 @@ public function testSignal()
     });
 
     $future->stop();
-    $this->assertTrue($future->isRunning());
+    $this->assertFalse($future->isRunning());
     $future->run();
     $this->assertFalse($future->isRunning());
     $this->assertFalse($future->isSuccessful());
@@ -273,7 +273,7 @@ public function testSignalYield()
     });
 
     $future->stop();
-    $this->assertTrue($future->isRunning());
+    $this->assertFalse($future->isRunning());
     $yield = $future->yielding();
     $this->assertTrue($yield instanceof \Generator);
     $this->assertNull($yield->current());