diff --git a/data/every_dream_validation.py b/data/every_dream_validation.py
index fd4e962..19a82c4 100644
--- a/data/every_dream_validation.py
+++ b/data/every_dream_validation.py
@@ -102,7 +102,7 @@ class EveryDreamValidator:
             # last step only
             return [epoch_length_steps-1]
         # subdivide the epoch evenly, by rounding self.every_n_epochs to the nearest clean division of steps
-        num_divisions = min(epoch_length_steps, math.ceil(1/self.every_n_epochs))
+        num_divisions = max(1, min(epoch_length_steps, round(1/self.every_n_epochs)))
         # validation happens after training:
         # if an epoch has eg 100 steps and num_divisions is 2, then validation should occur after steps 49 and 99
         validate_every_n_steps = epoch_length_steps / num_divisions