diff --git a/hw/xquartz/darwinEvents.c b/hw/xquartz/darwinEvents.c
index 35e33bab1..5aa16ffab 100644
--- a/hw/xquartz/darwinEvents.c
+++ b/hw/xquartz/darwinEvents.c
@@ -47,6 +47,7 @@
 #include <X11/Xproto.h>
 
 #include "mi/mi_priv.h"
+#include "os/client_priv.h"
 
 #include "misc.h"
 #include "windowstr.h"
diff --git a/include/os.h b/include/os.h
index 909411933..423346aaa 100644
--- a/include/os.h
+++ b/include/os.h
@@ -133,8 +133,6 @@ extern _X_EXPORT void IgnoreClient(ClientPtr /*client */ );
 
 extern _X_EXPORT void AttendClient(ClientPtr /*client */ );
 
-extern _X_EXPORT void ListenOnOpenFD(int /* fd */ , int /* noxauth */ );
-
 extern _X_EXPORT CARD32 GetTimeInMillis(void);
 extern _X_EXPORT CARD64 GetTimeInMicros(void);
 
diff --git a/os/client_priv.h b/os/client_priv.h
index 111276cb9..fd1d9cea7 100644
--- a/os/client_priv.h
+++ b/os/client_priv.h
@@ -41,5 +41,6 @@ const char *ClientAuthorized(struct _Client *client,
                              unsigned int string_n,
                              char *auth_string);
 Bool AddClientOnOpenFD(int fd);
+void ListenOnOpenFD(int fd, int noxauth);
 
 #endif /* _XSERVER_DIX_CLIENT_PRIV_H */