diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index 41e16e910dc..dec9010bd51 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -4332,7 +4332,7 @@ t4_sysctls(struct adapter *sc)
 	    NULL, sc->tids.nftids, "number of filters");
 
 	SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature", CTLTYPE_INT |
-	    CTLFLAG_RD, sc, 0, sysctl_temperature, "A",
+	    CTLFLAG_RD, sc, 0, sysctl_temperature, "I",
 	    "chip temperature (in Celsius)");
 
 	t4_sge_sysctls(sc, ctx, children);