diff --git a/arch/ppc/platforms/4xx/virtex.h b/arch/ppc/platforms/4xx/virtex.h
index 1a01b81cff11b6f458fe815562d3e50384f248a4..c14325dfd7b1fe2eda759d91f90f43bca4806220 100644
--- a/arch/ppc/platforms/4xx/virtex.h
+++ b/arch/ppc/platforms/4xx/virtex.h
@@ -27,7 +27,7 @@
 /* Device type enumeration for platform bus definitions */
 #ifndef __ASSEMBLY__
 enum ppc_sys_devices {
-	VIRTEX_UART,
+	VIRTEX_UART, NUM_PPC_SYS_DEVS,
 };
 #endif