diff --git a/libs/pcg/include/psemek/pcg/lazy_perlin.hpp b/libs/pcg/include/psemek/pcg/lazy_perlin.hpp
index dd228c19..0413ef13 100644
--- a/libs/pcg/include/psemek/pcg/lazy_perlin.hpp
+++ b/libs/pcg/include/psemek/pcg/lazy_perlin.hpp
@@ -53,7 +53,8 @@ namespace psemek::pcg
 					values[mask] = smootherstep(values[mask], values[mask | (1 << i)], t[i]);
 			}
 
-			return 0.5 * (1. + std::sqrt(2.) * values[0]);
+			static auto const max = std::sqrt(T(N) / T(4));
+			return 0.5 * (1. + values[0] / max);
 		}
 
 	}