diff --git a/server/TracyWorker.cpp b/server/TracyWorker.cpp
index 9f4fe86a..bfec4745 100644
--- a/server/TracyWorker.cpp
+++ b/server/TracyWorker.cpp
@@ -3978,6 +3978,8 @@ void Worker::ProcessGpuNewContext( const QueueGpuNewContext& ev )
 
 void Worker::ProcessGpuZoneBeginImpl( GpuEvent* zone, const QueueGpuZoneBegin& ev )
 {
+    m_data.gpuCnt++;
+
     auto ctx = m_gpuCtxMap[ev.context];
     assert( ctx );
 
@@ -4906,6 +4908,7 @@ void Worker::ReadTimeline( FileRead& f, Vector<GpuEvent*>& vec, uint64_t size, i
 {
     assert( size != 0 );
     vec.reserve_exact( size, m_slab );
+    m_data.gpuCnt += size;
     auto zone = (GpuEvent*)m_slab.AllocBig( sizeof( GpuEvent ) * size );
     auto zptr = zone;
     auto vptr = vec.data();
@@ -4939,6 +4942,7 @@ void Worker::ReadTimelinePre059( FileRead& f, Vector<GpuEvent*>& vec, uint64_t s
 {
     assert( size != 0 );
     vec.reserve_exact( size, m_slab );
+    m_data.gpuCnt += size;
 
     for( uint64_t i=0; i<size; i++ )
     {
diff --git a/server/TracyWorker.hpp b/server/TracyWorker.hpp
index 504fdfda..d421018a 100644
--- a/server/TracyWorker.hpp
+++ b/server/TracyWorker.hpp
@@ -154,11 +154,7 @@ private:
     struct DataBlock
     {
         DataBlock()
-            : zonesCnt( 0 )
-            , baseTime( 0 )
-            , lastTime( 0 )
-            , frameOffset( 0 )
-            , threadDataLast( std::numeric_limits<uint64_t>::max(), nullptr )
+            : threadDataLast( std::numeric_limits<uint64_t>::max(), nullptr )
             , ctxSwitchLast( std::numeric_limits<uint64_t>::max(), nullptr )
         {}
 
@@ -170,10 +166,11 @@ private:
         StringDiscovery<PlotData*> plots;
         Vector<ThreadData*> threads;
         MemData memory;
-        uint64_t zonesCnt;
-        int64_t baseTime;
-        int64_t lastTime;
-        uint64_t frameOffset;
+        uint64_t zonesCnt = 0;
+        uint64_t gpuCnt = 0;
+        int64_t baseTime = 0;
+        int64_t lastTime = 0;
+        uint64_t frameOffset = 0;
 
         flat_hash_map<uint64_t, const char*, nohash<uint64_t>> strings;
         Vector<const char*> stringData;