diff --git a/bin/misp-modules.py b/bin/misp-modules.py
index 08e585b..e9f1944 100755
--- a/bin/misp-modules.py
+++ b/bin/misp-modules.py
@@ -110,7 +110,8 @@ class QueryModule(tornado.web.RequestHandler):
 
 
 if __name__ == '__main__':
-    os.chdir(os.path.dirname(__file__))
+    if os.path.dirname(__file__) is not '':
+        os.chdir(os.path.dirname(__file__))
     argParser = argparse.ArgumentParser(description='misp-modules server')
     argParser.add_argument('-t', default=False, action='store_true', help='Test mode')
     argParser.add_argument('-p', default=6666, help='misp-modules TCP port (default 6666)')