diff --git a/eval.py b/eval.py
index 30244c7b..646e5dc7 100644
--- a/eval.py
+++ b/eval.py
@@ -44,6 +44,7 @@ def actor(batch):
     GC.Start()
 
     evaluator.episode_start(0)
+    model.train(False)
 
     for n in eval_iters.iters():
         GC.Run()