diff --git a/server/TracyEvent.hpp b/server/TracyEvent.hpp
index f51610c1..17299cdf 100644
--- a/server/TracyEvent.hpp
+++ b/server/TracyEvent.hpp
@@ -449,6 +449,8 @@ struct CpuThreadData
     uint32_t migrations = 0;
 };
 
+enum { CpuThreadDataSize = sizeof( CpuThreadData ) };
+
 }
 
 #endif
diff --git a/server/TracyWorker.cpp b/server/TracyWorker.cpp
index ac4bf25e..0f284f94 100644
--- a/server/TracyWorker.cpp
+++ b/server/TracyWorker.cpp
@@ -1517,6 +1517,16 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
             f.Read2( tid, pid );
             m_data.tidToPid.emplace( tid, pid );
         }
+
+        f.Read( sz );
+        for( uint64_t i=0; i<sz; i++ )
+        {
+            uint64_t tid;
+            CpuThreadData data;
+            f.Read( tid );
+            f.Read( data );
+            m_data.cpuThreadData.emplace( tid, data );
+        }
     }
 
     s_loadProgress.total.store( 0, std::memory_order_relaxed );
@@ -5093,6 +5103,14 @@ void Worker::Write( FileWrite& f )
         f.Write( &v.first, sizeof( v.first ) );
         f.Write( &v.second, sizeof( v.second ) );
     }
+
+    sz = m_data.cpuThreadData.size();
+    f.Write( &sz, sizeof( sz ) );
+    for( auto& v : m_data.cpuThreadData )
+    {
+        f.Write( &v.first, sizeof( v.first ) );
+        f.Write( &v.second, sizeof( v.second ) );
+    }
 }
 
 void Worker::WriteTimeline( FileWrite& f, const Vector<ZoneEvent*>& vec, int64_t& refTime )