diff --git a/shikaku.py b/shikaku.py
index 36d6aec..94361f8 100644
--- a/shikaku.py
+++ b/shikaku.py
@@ -528,7 +528,7 @@ class ShikakuGame:
 
     def new_puzzle(self, seed=None):
         self.current_seed = seed or random.randint(0, 2**31)
-        self.clues, self.solution = generate_puzzle(self.size, seed or random.randint(0, 2**31))
+        self.clues, self.solution = generate_puzzle(self.size, self.current_seed)
         self.player_rects = []
         self.start_time = time.time()
         self.elapsed = 0