diff --git a/server/TracyEvent.hpp b/server/TracyEvent.hpp
index 2d411662..ae97521b 100755
--- a/server/TracyEvent.hpp
+++ b/server/TracyEvent.hpp
@@ -12,6 +12,7 @@ struct Event
     int64_t end;
     uint32_t srcloc;
 
+    Event* parent;
     Vector<Event*> child;
 };
 
diff --git a/server/TracyView.cpp b/server/TracyView.cpp
index 75803915..065e0f1b 100755
--- a/server/TracyView.cpp
+++ b/server/TracyView.cpp
@@ -224,6 +224,7 @@ void View::ProcessZoneBegin( uint64_t id, const QueueZoneBegin& ev )
 {
     auto it = m_pendingEndZone.find( id );
     auto zone = m_slab.Alloc<Event>();
+    zone->parent = nullptr;
 
     CheckString( ev.filename );
     CheckString( ev.function );