diff --git a/server/TracyTimelineController.cpp b/server/TracyTimelineController.cpp
index 5600b676..ec76d1af 100644
--- a/server/TracyTimelineController.cpp
+++ b/server/TracyTimelineController.cpp
@@ -143,7 +143,7 @@ void TimelineController::End( double pxns, const ImVec2& wpos, bool hover, bool
         {
             const auto yPos = wpos.y + yOffset;
             const bool visible = m_firstFrame || ( yPos < yMax && yPos + item->GetHeight() >= yMin );
-            item->Preprocess( ctx, m_td, visible );
+            item->Preprocess( ctx, m_td, visible, yPos );
         }
         yOffset += m_firstFrame ? 0 : item->GetHeight();
     }
diff --git a/server/TracyTimelineItem.hpp b/server/TracyTimelineItem.hpp
index 754c3b6c..1c618075 100644
--- a/server/TracyTimelineItem.hpp
+++ b/server/TracyTimelineItem.hpp
@@ -24,7 +24,7 @@ public:
     void Draw( bool firstFrame, const TimelineContext& ctx, int yOffset );
 
     bool WantPreprocess() const { return m_wantPreprocess; }
-    virtual void Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible ) { assert( false ); }
+    virtual void Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible, int yPos ) { assert( false ); }
 
     void VisibilityCheckbox();
     virtual void SetVisible( bool visible ) { m_visible = visible; }
diff --git a/server/TracyTimelineItemCpuData.cpp b/server/TracyTimelineItemCpuData.cpp
index 4695a79f..35d9e97c 100644
--- a/server/TracyTimelineItemCpuData.cpp
+++ b/server/TracyTimelineItemCpuData.cpp
@@ -51,7 +51,7 @@ void TimelineItemCpuData::DrawFinished()
     for( auto& v : m_ctxDraw ) v.clear();
 }
 
-void TimelineItemCpuData::Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible )
+void TimelineItemCpuData::Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible, int yPos )
 {
     assert( m_cpuDraw.empty() );
     for( auto& v : m_ctxDraw ) assert( v.empty() );
diff --git a/server/TracyTimelineItemCpuData.hpp b/server/TracyTimelineItemCpuData.hpp
index 7b4595a2..7d6b707f 100644
--- a/server/TracyTimelineItemCpuData.hpp
+++ b/server/TracyTimelineItemCpuData.hpp
@@ -30,7 +30,7 @@ protected:
 
     bool IsEmpty() const override;
 
-    void Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible ) override;
+    void Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible, int yPos ) override;
 
 private:
     void PreprocessCpuUsage( const TimelineContext& ctx );
diff --git a/server/TracyTimelineItemThread.cpp b/server/TracyTimelineItemThread.cpp
index ba97b87a..b3a87e45 100644
--- a/server/TracyTimelineItemThread.cpp
+++ b/server/TracyTimelineItemThread.cpp
@@ -281,7 +281,7 @@ void TimelineItemThread::DrawFinished()
     m_msgDraw.clear();
 }
 
-void TimelineItemThread::Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible )
+void TimelineItemThread::Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible, int yPos )
 {
     assert( m_samplesDraw.empty() );
     assert( m_ctxDraw.empty() );
diff --git a/server/TracyTimelineItemThread.hpp b/server/TracyTimelineItemThread.hpp
index efc07b4a..b22064aa 100644
--- a/server/TracyTimelineItemThread.hpp
+++ b/server/TracyTimelineItemThread.hpp
@@ -31,7 +31,7 @@ protected:
 
     bool IsEmpty() const override;
 
-    void Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible ) override;
+    void Preprocess( const TimelineContext& ctx, TaskDispatch& td, bool visible, int yPos ) override;
 
 private:
 #ifndef TRACY_NO_STATISTICS