diff --git a/genCarPlate.py b/genCarPlate.py
index e3020c8..47f7ae1 100644
--- a/genCarPlate.py
+++ b/genCarPlate.py
@@ -72,7 +72,7 @@ def gen_batch(self, perSize, outDir):
         for i in range(perSize*31-1):
             outputPath = outDir + str(i // perSize) + "/"
             if (not os.path.exists(outputPath)):
-                os.mkdir(outputPath)
+                os.makedirs(outputPath)
             plate_str = self.gen_plate_string(i, perSize)
             img, loc =  self.generate(plate_str)
             if img is None:
@@ -95,4 +95,4 @@ def main(args):
     G.gen_batch(args.gen_count_per_province, args.out_dir)
 
 if __name__ == '__main__':
-    main(parse_args())
\ No newline at end of file
+    main(parse_args())