diff --git a/src/drivers/net/sky2.c b/src/drivers/net/sky2.c
index 35ff66c6..211f2246 100644
--- a/src/drivers/net/sky2.c
+++ b/src/drivers/net/sky2.c
@@ -246,7 +246,7 @@ static void sky2_power_aux(struct sky2_hw *hw)
 			    Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
 
 	/* switch power to VAUX */
-	if (sky2_read16(hw, B0_CTST) & Y2_VAUX_AVAIL)
+	if (sky2_read32(hw, B0_CTST) & Y2_VAUX_AVAIL)
 		sky2_write8(hw, B0_POWER_CTRL,
 			    (PC_VAUX_ENA | PC_VCC_ENA |
 			     PC_VAUX_ON | PC_VCC_OFF));
diff --git a/src/drivers/net/sky2.h b/src/drivers/net/sky2.h
index 9bb63010..9c331312 100644
--- a/src/drivers/net/sky2.h
+++ b/src/drivers/net/sky2.h
@@ -294,7 +294,7 @@ enum csr_regs {
 	Y2_CFG_AER      = 0x1d00,	/* PCI Advanced Error Report region */
 };
 
-/*	B0_CTST			16 bit	Control/Status register */
+/*	B0_CTST			24 bit	Control/Status register */
 enum {
 	Y2_VMAIN_AVAIL	= 1<<17,/* VMAIN available (YUKON-2 only) */
 	Y2_VAUX_AVAIL	= 1<<16,/* VAUX available (YUKON-2 only) */