diff --git a/client/TracyRingBuffer.hpp b/client/TracyRingBuffer.hpp
index 29d93559..32532bae 100644
--- a/client/TracyRingBuffer.hpp
+++ b/client/TracyRingBuffer.hpp
@@ -5,8 +5,9 @@ template<size_t Size>
 class RingBuffer
 {
 public:
-    RingBuffer( int fd )
+    RingBuffer( int fd, int id )
         : m_fd( fd )
+        , m_id( id )
     {
         const auto pageSize = uint32_t( getpagesize() );
         assert( Size >= pageSize );
@@ -49,6 +50,7 @@ public:
     }
 
     bool IsValid() const { return m_metadata != nullptr; }
+    int GetId() const { return m_id; }
 
     void Enable()
     {
@@ -111,6 +113,7 @@ private:
 
     size_t m_mapSize;
     int m_fd;
+    int m_id;
 };
 
 }
diff --git a/client/TracySysTrace.cpp b/client/TracySysTrace.cpp
index 7c4df83d..a99a5588 100644
--- a/client/TracySysTrace.cpp
+++ b/client/TracySysTrace.cpp
@@ -675,6 +675,11 @@ static int perf_event_open( struct perf_event_attr* hw_event, pid_t pid, int cpu
     return syscall( __NR_perf_event_open, hw_event, pid, cpu, group_fd, flags );
 }
 
+enum TraceEventId
+{
+    EventCallstack
+};
+
 static void SetupSampling( int64_t& samplingPeriod )
 {
 #ifndef CLOCK_MONOTONIC_RAW
@@ -715,7 +720,7 @@ static void SetupSampling( int64_t& samplingPeriod )
             tracy_free( s_ring );
             return;
         }
-        new( s_ring+i ) RingBuffer<RingBufSize>( fd );
+        new( s_ring+i ) RingBuffer<RingBufSize>( fd, EventCallstack );
     }
 
     s_threadSampling = (Thread*)tracy_malloc( sizeof( Thread ) );