diff --git a/tools/clean.py b/tools/clean.py
index 7565978fc..4d97c51b4 100755
--- a/tools/clean.py
+++ b/tools/clean.py
@@ -40,6 +40,7 @@ def clean():
 		'.',
 		'tools',
 		'src',
+		'simulation',
 		os.path.join('src', 'kademlia'),
 		os.path.join('include', 'libtorrent'),
 		os.path.join('include', os.path.join('libtorrent', '_aux')),
@@ -47,7 +48,8 @@ def clean():
 		os.path.join('bindings', 'python'),
 		os.path.join('bindings', os.path.join('python', 'src')),
 		os.path.join('bindings', 'c'),
-		os.path.join('bindings', os.path.join('c', 'src'))
+		os.path.join('bindings', os.path.join('c', 'src')),
+		os.path.join('simulation', 'libsimulator')
 	]
 
 	for d in directories: