diff --git a/main.lua b/main.lua
index 1bcef18..fc0d4b3 100644
--- a/main.lua
+++ b/main.lua
@@ -423,7 +423,7 @@ local function do_reset()
         end
     end
 
-    max_time = 6 * sqrt(480 / #trial_params * (epoch_i - 1)) + 60
+    max_time = 6 * sqrt(10 * (epoch_i - 1)) + 60
     max_time = clamp(max_time, cfg.min_time, cfg.max_time)
     max_time = ceil(max_time)