diff --git a/src/PocketMine.php b/src/PocketMine.php
index ddaa3bcc3..530815eb6 100644
--- a/src/PocketMine.php
+++ b/src/PocketMine.php
@@ -281,6 +281,8 @@ namespace pocketmine {
 
 		echo Terminal::$FORMAT_RESET . PHP_EOL;
 
+		Filesystem::releaseLockFile($lockFilePath);
+
 		exit($exitCode);
 	}
 
diff --git a/src/utils/Filesystem.php b/src/utils/Filesystem.php
index 7709deb5f..6a9068bdd 100644
--- a/src/utils/Filesystem.php
+++ b/src/utils/Filesystem.php
@@ -46,6 +46,7 @@ use const DIRECTORY_SEPARATOR;
 use const LOCK_EX;
 use const LOCK_NB;
 use const LOCK_SH;
+use const LOCK_UN;
 use const SCANDIR_SORT_NONE;
 
 final class Filesystem{
@@ -140,6 +141,7 @@ final class Filesystem{
 			throw new \InvalidArgumentException("Invalid lock file path");
 		}
 		if(isset(self::$lockFileHandles[$lockFilePath])){
+			flock(self::$lockFileHandles[$lockFilePath], LOCK_UN);
 			fclose(self::$lockFileHandles[$lockFilePath]);
 			unset(self::$lockFileHandles[$lockFilePath]);
 			@unlink($lockFilePath);