diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index 5b9b901..d6e4746 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -243,6 +243,7 @@
 		 * If left NULL, .message_pass defaults to
 		 * smp_muxed_ipi_message_pass
 		 */
+		smp_85xx_ops.message_pass = NULL;
 		smp_85xx_ops.cause_ipi = doorbell_cause_ipi;
 	}