diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c
index cb5459868a..c45cbf8c11 100644
--- a/src/soc/intel/alderlake/fsp_params.c
+++ b/src/soc/intel/alderlake/fsp_params.c
@@ -71,6 +71,7 @@ static const struct slot_irq_constraints irq_constraints[] = {
 		.slot = SA_DEV_SLOT_CPU_1,
 		.fns = {
 			FIXED_INT_PIRQ(SA_DEVFN_CPU_PCIE1_0, PCI_INT_A, PIRQ_A),
+			FIXED_INT_PIRQ(SA_DEVFN_CPU_PCIE1_1, PCI_INT_B, PIRQ_B),
 		},
 	},
 	{