fix typo
diff --git a/progs/xdemos/glxgears.c b/progs/xdemos/glxgears.c
index 40d2f2f..ad7db9e 100644
--- a/progs/xdemos/glxgears.c
+++ b/progs/xdemos/glxgears.c
@@ -648,7 +648,7 @@
          printf("  -display displayName    Specify X display\n");
          printf("  -info                   Display GL information\n");
          printf("  -swap N                 Swap no more than once per N vertical refreshes\n");
-         printf("  -forcgetrate            Try to use glXGetMscRateOML function\n");
+         printf("  -forcegetrate           Try to use glXGetMscRateOML function\n");
          return 0;
       }
    }