diff --git a/split_json_random.py b/split_json_random.py
index abddc83f2591c2534f0be3b24a567a702190017e..161af0df0022c798447d5a25924a5f23223e448c 100644
--- a/split_json_random.py
+++ b/split_json_random.py
@@ -14,6 +14,8 @@ items = json.loads(sys.stdin.read())
 num_test = int(float(sys.argv[3]) * len(items))
 num_valid = int(float(sys.argv[4]) * len(items))
 
+random.seed(12345)
+
 for n in range(num_folds):
   random.shuffle(items)