diff --git a/src/core/internal_network/emu_net_state.cpp b/src/core/internal_network/emu_net_state.cpp
index 1d4052e4f8..17fa58fa08 100644
--- a/src/core/internal_network/emu_net_state.cpp
+++ b/src/core/internal_network/emu_net_state.cpp
@@ -14,6 +14,8 @@
 #endif
 #include <common/settings.h>
 
+#include <mutex>
+
 namespace Network {
 
 EmuNetState& EmuNetState::Get() {