diff --git a/projects/rocr-runtime/runtime/hsa-runtime/core/inc/runtime.h b/projects/rocr-runtime/runtime/hsa-runtime/core/inc/runtime.h
index 0327d6520a..bfffcb6c84 100644
--- a/projects/rocr-runtime/runtime/hsa-runtime/core/inc/runtime.h
+++ b/projects/rocr-runtime/runtime/hsa-runtime/core/inc/runtime.h
@@ -894,7 +894,7 @@ class Runtime {
 
   // IPC DMA buf unix domain socket server dmabuf FD passing
   int ipc_sock_server_fd_;
-  std::map<uint64_t, int> ipc_sock_server_conns_;
+  std::map<uint64_t, size_t> ipc_sock_server_conns_;
   KernelMutex ipc_sock_server_lock_;
 
  private: