diff --git a/include/os.h b/include/os.h
index 2a39d49bd..9ba569ae6 100644
--- a/include/os.h
+++ b/include/os.h
@@ -150,8 +150,6 @@ static inline void RemoveNotifyFd(int fd)
     (void) SetNotifyFd(fd, NULL, X_NOTIFY_NONE, NULL);
 }
 
-extern _X_EXPORT void ListenToAllClients(void);
-
 extern _X_EXPORT void IgnoreClient(ClientPtr /*client */ );
 
 extern _X_EXPORT void AttendClient(ClientPtr /*client */ );
diff --git a/os/osdep.h b/os/osdep.h
index b5d15df0a..2687f0ee9 100644
--- a/os/osdep.h
+++ b/os/osdep.h
@@ -247,4 +247,6 @@ void MakeClientGrabImpervious(ClientPtr client);
 
 int OnlyListenToOneClient(ClientPtr client);
 
+void ListenToAllClients(void);
+
 #endif                          /* _OSDEP_H_ */