diff --git a/shaders/raymarcher.glsl b/shaders/raymarcher.glsl
index 6fd1ead..3b0d922 100644
--- a/shaders/raymarcher.glsl
+++ b/shaders/raymarcher.glsl
@@ -3,7 +3,7 @@ vec3 getNormal( vec3 pos )
 	vec2 v = vec2( .0005 , 0 );
 	return normalize( vec3(
 			map( pos + v.xyy ).x - map( pos - v.xyy ).x ,
-			map( pos + v.yxy ).x - map( pos - v.xyx ).x ,
+			map( pos + v.yxy ).x - map( pos - v.yxy ).x ,
 			map( pos + v.yyx ).x - map( pos - v.yyx ).x ) );
 }