diff --git a/configure/CONFIG_SITE b/configure/CONFIG_SITE
index 20434d901..51c4746af 100644
--- a/configure/CONFIG_SITE
+++ b/configure/CONFIG_SITE
@@ -35,6 +35,7 @@
 #       vxWorks-68060
 #       vxWorks-pentium
 #       vxWorks-ppc604
+#       vxWorks-ppc603
 #       RTEMS-gen68360
 #       RTEMS-mvme167
 #