diff --git a/arch/mips/sibyte/bcm1480/setup.c b/arch/mips/sibyte/bcm1480/setup.c
index bb28f28e8042254da6c19bbd6ece9da20bba8de8..f2eefbe99916420065fea5be04724549f45d4ffb 100644
--- a/arch/mips/sibyte/bcm1480/setup.c
+++ b/arch/mips/sibyte/bcm1480/setup.c
@@ -35,6 +35,7 @@ unsigned int soc_type;
 EXPORT_SYMBOL(soc_type);
 unsigned int periph_rev;
 unsigned int zbbus_mhz;
+EXPORT_SYMBOL(zbbus_mhz);
 
 static unsigned int part_type;