--- TreeLine.old/install.py
+++ TreeLine/install.py
@@ -109,7 +109,7 @@
         execDir -- the path where the executable is placed
         execName -- the name for the executable file
     """
-    text = '#!/bin/sh\n\nexec {0} {1}/{2}.py "$@"'.format(sys.executable,
+    text = '#!/bin/sh\n\nexec {0} {1}/{2}.py "$@" &'.format(sys.executable,
                                                           execDir,
                                                           execName)
     with open(execName, 'w') as f: