diff --git a/server/TracyTimelineItem.hpp b/server/TracyTimelineItem.hpp
index 48ad6c57..5c5460c2 100644
--- a/server/TracyTimelineItem.hpp
+++ b/server/TracyTimelineItem.hpp
@@ -21,6 +21,7 @@ public:
 
     void VisibilityCheckbox();
     void SetVisible( bool visible ) { m_visible = visible; }
+    bool IsVisible() const { return m_visible; }
 
 protected:
     virtual uint32_t HeaderColor() const = 0;