diff --git a/src/core/internal_network/emu_net_state.h b/src/core/internal_network/emu_net_state.h
index 0aa747f9a4..d16f1830a6 100644
--- a/src/core/internal_network/emu_net_state.h
+++ b/src/core/internal_network/emu_net_state.h
@@ -4,6 +4,7 @@
 #pragma once
 #include <atomic>
 #include <common/socket_types.h>
+#include <mutex>
 
 namespace Network {