Index: /trunk/src/VBox/Additions/x11/VBoxClient/main.cpp
===================================================================
--- /trunk/src/VBox/Additions/x11/VBoxClient/main.cpp	(revision 23970)
+++ /trunk/src/VBox/Additions/x11/VBoxClient/main.cpp	(revision 23971)
@@ -133,5 +133,5 @@
 void vboxClientUsage(const char *pcszFileName)
 {
-    RTPrintf("Usage: %s --clipboard|--display|--seamless [-d|--nodaemon]\n", pcszFileName);
+    RTPrintf("Usage: %s --clipboard|--display|--checkhostversion|--seamless [-d|--nodaemon]\n", pcszFileName);
     RTPrintf("Start the VirtualBox X Window System guest services.\n\n");
     RTPrintf("Options:\n");