diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index 1569b7439ff..d4048cd4ce3 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -623,6 +623,7 @@ struct {
 #endif
 }, t6_pciids[] = {
 	{0xc006, "Chelsio Terminator 6 FPGA"},	/* T6 PE10K6 FPGA (PF0) */
+	{0x6400, "Chelsio T6225-DBG"},		/* 2 x 10/25G, debug */
 	{0x6401, "Chelsio T6225-CR"},		/* 2 x 10/25G */
 	{0x6402, "Chelsio T6225-SO-CR"},	/* 2 x 10/25G, nomem */
 	{0x6407, "Chelsio T62100-LP-CR"},	/* 2 x 40/50/100G */