diff --git a/madgraph/interface/madevent_interface.py b/madgraph/interface/madevent_interface.py
index 8c509e83ff..b61a1814ee 100755
--- a/madgraph/interface/madevent_interface.py
+++ b/madgraph/interface/madevent_interface.py
@@ -3967,6 +3967,7 @@ def do_create_gridpack(self, line):
         for P in Pdir: 
             allG = misc.glob('G*', path=P)
             for G in allG:
+                if not os.path.isdir(G): continue
                 if pjoin(P, G) not in Gdir:
                     logger.debug('removing %s', pjoin(P,G))
                     shutil.rmtree(pjoin(P,G))