diff --git a/data/gan.py b/data/gan.py
index 6e6454e..0d449d2 100644
--- a/data/gan.py
+++ b/data/gan.py
@@ -171,9 +171,10 @@ class GNet :
                                 root = []
                                 for loc in path.split(os.sep) :
                                         root.append(loc)
-                                        os.mkdir(os.sep.join(root))
+                                        if not os.path.exists(os.sep.join(root)) :
+                                                os.mkdir(os.sep.join(root))
 
-                        else:
+                        elif not os.path.exists(path):
                                 os.mkdir(path)