diff --git a/raycastlib.h b/raycastlib.h
index c5e59f2..fc19861 100644
--- a/raycastlib.h
+++ b/raycastlib.h
@@ -904,7 +904,7 @@ void _columnFunction(HitResult *hits, uint16_t hitCount, uint16_t x, Ray ray)
     {
       iTo = y2 < zTop ? zTop : y2;
 
-      for (int_maybe32_t i = z1Screen < y ? z1Screen : y; i >= iTo; --i)
+      for (int_maybe32_t i = y; i >= iTo; --i)
       {
         p.position.y = i;
         p.hit = hit;
@@ -925,8 +925,7 @@ void _columnFunction(HitResult *hits, uint16_t hitCount, uint16_t x, Ray ray)
     {
       iTo = y > zBottomCeil ? zBottomCeil : y;
 
-      for (int_maybe32_t i = z1ScreenCeil > y2 ? z1ScreenCeil : y2; i < iTo;
-        ++i)
+      for (int_maybe32_t i = y2; i < iTo; ++i)
       {
         p.position.y = i;
         p.hit = hit;