diff --git a/src/core/hle/service/ldn/ldn.cpp b/src/core/hle/service/ldn/ldn.cpp
index be04146a0a..57067ee83f 100644
--- a/src/core/hle/service/ldn/ldn.cpp
+++ b/src/core/hle/service/ldn/ldn.cpp
@@ -7,6 +7,7 @@
 #include "core/core.h"
 #include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/ldn/ldn.h"
+#include "core/hle/service/ldn/client_process_monitor.h"
 #include "core/hle/service/ldn/monitor_service.h"
 #include "core/hle/service/ldn/sf_monitor_service.h"
 #include "core/hle/service/ldn/sf_service.h"