diff --git a/src/Command/DaemonCommand.php b/src/Command/DaemonCommand.php
index 66931d6..629b6e3 100644
--- a/src/Command/DaemonCommand.php
+++ b/src/Command/DaemonCommand.php
@@ -50,7 +50,7 @@ class DaemonCommand extends Command
             throw new \InvalidArgumentException('Time limit has incorrect value');
         }
         $jobRepo->unlockJob();
-        file_put_contents($this->kernel->getCacheDir() . '/daemon-running.lock', posix_getpid());
+        file_put_contents($this->kernel->getCacheDir() . '/daemon-running.lock', time());
         while(1) {
             if($endofscript !== false && time() > $endofscript) break;
 
@@ -86,6 +86,7 @@ class DaemonCommand extends Command
                 }
             }
             $this->doctrine->getManager()->clear();
+            file_put_contents($this->kernel->getCacheDir() . '/daemon-running.lock', time());
 
             $maxwait = time() + 30;
             $nextrun = $jobRepo->getTimeOfNextRun();
diff --git a/src/Service/DaemonHelpers.php b/src/Service/DaemonHelpers.php
index 0eb5bdc..a3a5513 100644
--- a/src/Service/DaemonHelpers.php
+++ b/src/Service/DaemonHelpers.php
@@ -14,8 +14,8 @@ class DaemonHelpers
      */
     public static function isProcessRunning($pidFile = '/var/run/myfile.pid') {
         if (!file_exists($pidFile) || !is_file($pidFile)) return false;
-        $pid = file_get_contents($pidFile);
-        $return = posix_kill((int)$pid, 0);
+        $lasttick = file_get_contents($pidFile);
+        $return = ((int)$lasttick >= (time() - 30));
         if (!$return) unlink($pidFile);
         return $return;
     }