diff --git a/src/northbridge/intel/sandybridge/pei_data.h b/src/northbridge/intel/sandybridge/pei_data.h
index 0309cf3..db6347c 100644
--- a/src/northbridge/intel/sandybridge/pei_data.h
+++ b/src/northbridge/intel/sandybridge/pei_data.h
@@ -116,4 +116,5 @@
 	int ddr_refresh_rate_config;
 } __packed;
 
+void southbridge_fill_pei_data(struct pei_data *pei_data);
 #endif