diff --git a/sys/dev/cxgbe/tom/t4_cpl_io.c b/sys/dev/cxgbe/tom/t4_cpl_io.c
index 6ce6b98a9300..f0f33876726c 100644
--- a/sys/dev/cxgbe/tom/t4_cpl_io.c
+++ b/sys/dev/cxgbe/tom/t4_cpl_io.c
@@ -540,7 +540,7 @@ t4_close_conn(struct adapter *sc, struct toepcb *toep)
 static inline int
 max_imm_payload(int tx_credits)
 {
-	const int n = 2;	/* Use only up to 2 desc for imm. data WR */
+	const int n = 1;	/* Use no more than one desc for imm. data WR */
 
 	KASSERT(tx_credits >= 0 &&
 		tx_credits <= MAX_OFLD_TX_CREDITS,