diff --git a/include/os.h b/include/os.h
index f38e6c4d8..e78f5a4c1 100644
--- a/include/os.h
+++ b/include/os.h
@@ -147,8 +147,6 @@ 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 d93a5a926..138a04fcd 100644
--- a/os/osdep.h
+++ b/os/osdep.h
@@ -193,4 +193,6 @@ void MakeClientGrabImpervious(ClientPtr client);
 
 int OnlyListenToOneClient(ClientPtr client);
 
+void ListenToAllClients(void);
+
 #endif                          /* _OSDEP_H_ */