diff --git a/speed-transition.lua b/speed-transition.lua
index bc12f56..4e78d36 100644
--- a/speed-transition.lua
+++ b/speed-transition.lua
@@ -38,7 +38,7 @@ function check_position(_, position)
       if nextsub ~= 0 and position >= (mark+nextsub-leadin) then
          restore_normalspeed()
          mp.unobserve_property(check_position)
-      elseif nextsub == 0 and position >= (mark+set_timeout()) then
+      elseif nextsub == 0 and position >= (mark+set_timeout()-leadin) then
          nextsub, _ , mark = check_should_speedup()
       end
    end