diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 794ec6e71990..a5c363252986 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -2548,7 +2548,7 @@ ptp_ocp_sma_fb_init(struct ptp_ocp *bp)
 		for (i = 0; i < OCP_SMA_NUM; i++) {
 			bp->sma[i].fixed_fcn = true;
 			bp->sma[i].fixed_dir = true;
-			bp->sma[1].dpll_prop.capabilities &=
+			bp->sma[i].dpll_prop.capabilities &=
 				~DPLL_PIN_CAPABILITIES_DIRECTION_CAN_CHANGE;
 		}
 		return;