diff --git a/yg/circle_element.cpp b/yg/circle_element.cpp
index 2c1ddf7702..35751dc193 100644
--- a/yg/circle_element.cpp
+++ b/yg/circle_element.cpp
@@ -50,6 +50,7 @@ namespace yg
     uint32_t styleID = r->skin()->mapCircleInfo(m_ci);
 
     ResourceStyle const * style = r->skin()->fromID(styleID);
+    ASSERT_NOT_EQUAL ( style, 0, () );
 
     m2::RectI texRect(style->m_texRect);
     texRect.Inflate(-1, -1);