diff --git a/client/TracyProfiler.cpp b/client/TracyProfiler.cpp
index 33cbe202..5b5a2be4 100644
--- a/client/TracyProfiler.cpp
+++ b/client/TracyProfiler.cpp
@@ -520,6 +520,31 @@ void Profiler::SendSourceLocationPayload( uint64_t _ptr )
     AppendData( ptr + 4, l16 );
 }
 
+void Profiler::SendCallstackPayload( uint64_t _ptr )
+{
+    auto ptr = (uintptr_t*)_ptr;
+
+    QueueItem item;
+    MemWrite( &item.hdr.type, QueueType::CallstackPayload );
+    MemWrite( &item.stringTransfer.ptr, _ptr );
+
+    const auto sz = *ptr++;
+    const auto len = sz * sizeof( uint64_t );
+    const auto l16 = uint16_t( len );
+
+    NeedDataSize( QueueDataSize[(int)QueueType::CallstackPayload] + sizeof( l16 ) + l16 );
+
+    AppendData( &item, QueueDataSize[(int)QueueType::CallstackPayload] );
+    AppendData( &l16, sizeof( l16 ) );
+
+    for( uintptr_t i=0; i<sz; i++ )
+    {
+        const auto val = uint64_t( *ptr++ );
+        AppendData( &val, sizeof( uint64_t ) );
+    }
+}
+
+
 static bool DontExit() { return false; }
 
 bool Profiler::HandleServerQuery()
diff --git a/client/TracyProfiler.hpp b/client/TracyProfiler.hpp
index ce7afecb..ff0d91ad 100644
--- a/client/TracyProfiler.hpp
+++ b/client/TracyProfiler.hpp
@@ -298,6 +298,7 @@ private:
     void SendString( uint64_t ptr, const char* str, QueueType type );
     void SendSourceLocation( uint64_t ptr );
     void SendSourceLocationPayload( uint64_t ptr );
+    void SendCallstackPayload( uint64_t ptr );
 
     bool HandleServerQuery();
 
diff --git a/common/TracyQueue.hpp b/common/TracyQueue.hpp
index ba2b874b..f81f92bb 100644
--- a/common/TracyQueue.hpp
+++ b/common/TracyQueue.hpp
@@ -41,6 +41,7 @@ enum class QueueType : uint8_t
     CustomStringData,
     PlotName,
     SourceLocationPayload,
+    CallstackPayload,
     NUM_TYPES
 };
 
@@ -292,6 +293,7 @@ static const size_t QueueDataSize[] = {
     sizeof( QueueHeader ) + sizeof( QueueStringTransfer ),  // custom string data
     sizeof( QueueHeader ) + sizeof( QueueStringTransfer ),  // plot name
     sizeof( QueueHeader ) + sizeof( QueueStringTransfer ),  // allocated source location payload
+    sizeof( QueueHeader ) + sizeof( QueueStringTransfer ),  // callstack payload
 };
 
 static_assert( QueueItemSize == 32, "Queue item size not 32 bytes" );