diff --git a/types/openlayers/index.d.ts b/types/openlayers/index.d.ts
index b7073bcda2..8a711771fa 100644
--- a/types/openlayers/index.d.ts
+++ b/types/openlayers/index.d.ts
@@ -14392,6 +14392,7 @@ declare module olx {
             angle?: number;
             snapToPixel?: boolean;
             stroke?: ol.style.Stroke;
+            rotation?: number;
         }