diff --git a/Minecraft-Classic-map-generation-algorithm.md b/Minecraft-Classic-map-generation-algorithm.md
index 991a88a..9d31042 100644
--- a/Minecraft-Classic-map-generation-algorithm.md
+++ b/Minecraft-Classic-map-generation-algorithm.md
@@ -110,8 +110,8 @@ Let caveRadius be randomFloat() * randomFloat()
 
 for len in caveLength {
 	set cavePos.x to previous value + sin(theta) * cos(phi)
-	set cavePos.y to previous value + cos(theta) * cos(phi)
-	set cavePos.z to previous value + sin(phi)
+	set cavePos.z to previous value + cos(theta) * cos(phi)
+	set cavePos.y to previous value + sin(phi)
 	
 	set theta to previous value + deltaTheta * 0.2
 	set deltaTheta to (previous value * 0.9) + randomFloat() - randomFloat()