diff --git a/src/Mass/Mass.h b/src/Mass/Mass.h
index 5bfe2b1..e0a7265 100644
--- a/src/Mass/Mass.h
+++ b/src/Mass/Mass.h
@@ -52,6 +52,7 @@ struct CustomStyle {
     Int patternId = 0;
     Float opacity = 0.0f;
     Float offsetX = 0.0f;
+    Float offsetY = 0.0f;
     Float rotation = 0.0f;
     Float scale = 0.0f;
 };