diff --git a/src/soc/intel/jasperlake/romstage/romstage.c b/src/soc/intel/jasperlake/romstage/romstage.c
index b8e9032e97..dc5dcf1a9b 100644
--- a/src/soc/intel/jasperlake/romstage/romstage.c
+++ b/src/soc/intel/jasperlake/romstage/romstage.c
@@ -108,8 +108,8 @@ static void save_dimm_info(void)
 					src_dimm->RankInDimm,
 					channel_info->ChannelId,
 					src_dimm->DimmId,
-					(const char *)src_dimm->ModulePartNum,
-					sizeof(src_dimm->ModulePartNum),
+					dram_part_num,
+					dram_part_num_len,
 					serial_num,
 					meminfo_hob->DataWidth,
 					meminfo_hob->VddVoltage[memProfNum],