diff --git a/src/soc/intel/alderlake/romstage/fsp_params.c b/src/soc/intel/alderlake/romstage/fsp_params.c
index 55980a8790..83c84ac518 100644
--- a/src/soc/intel/alderlake/romstage/fsp_params.c
+++ b/src/soc/intel/alderlake/romstage/fsp_params.c
@@ -53,7 +53,7 @@ static void soc_memory_init_params(FSP_M_CONFIG *m_cfg,
 	memcpy(m_cfg->PcieClkSrcClkReq, config->PcieClkSrcClkReq,
 		sizeof(config->PcieClkSrcClkReq));
 
-	m_cfg->PrmrrSize = get_prmrr_size();
+	m_cfg->PrmrrSize = get_valid_prmrr_size();
 	m_cfg->EnableC6Dram = config->enable_c6dram;
 	/* Disable BIOS Guard */
 	m_cfg->BiosGuard = 0;