diff --git a/Crafter.Graphics-HeightmapShader.cppm b/Crafter.Graphics-HeightmapShader.cppm
index 475955e..5f83bdf 100644
--- a/Crafter.Graphics-HeightmapShader.cppm
+++ b/Crafter.Graphics-HeightmapShader.cppm
@@ -55,7 +55,7 @@ namespace Crafter {
                 Update();
             }
         ) {
-            data.value->stride = stride*4;
+            data.value->stride = stride;
             data.value->spacing = spacing;
             transform = MatrixRowMajor<float, 4, 4, 1>::Identity();
         }