diff --git a/conf.c b/conf.c
index d296da4..5904b91 100644
--- a/conf.c
+++ b/conf.c
@@ -1260,6 +1260,7 @@ parse_hwtimestamp(char *line)
   iface = ARR_GetNewElement(hwts_interfaces);
   iface->name = Strdup(p);
   iface->minpoll = 0;
+  iface->nocrossts = 0;
   iface->precision = 100.0e-9;
   iface->tx_comp = 0.0;
   iface->rx_comp = 0.0;
@@ -1279,6 +1280,9 @@ parse_hwtimestamp(char *line)
     } else if (!strcasecmp(p, "txcomp")) {
       if (sscanf(line, "%lf%n", &iface->tx_comp, &n) != 1)
         break;
+    } else if (!strcasecmp(p, "nocrossts")) {
+      n = 0;
+      iface->nocrossts = 1;
     } else {
       break;
     }
diff --git a/conf.h b/conf.h
index b84d921..22e6542 100644
--- a/conf.h
+++ b/conf.h
@@ -122,6 +122,7 @@ extern double CNF_GetInitStepThreshold(void);
 typedef struct {
   char *name;
   int minpoll;
+  int nocrossts;
   double precision;
   double tx_comp;
   double rx_comp;
diff --git a/doc/chrony.conf.adoc b/doc/chrony.conf.adoc
index a0801f0..3dc4189 100644
--- a/doc/chrony.conf.adoc
+++ b/doc/chrony.conf.adoc
@@ -1836,6 +1836,9 @@ This option specifies the difference in seconds between the reported receive
 timestamp and the actual reception time at the physical layer. This value will
 be subtracted from receive timestamps obtained from the NIC. The default value
 is 0.
+*nocrossts*:::
+Some hardware can precisely cross timestamp the NIC clock with the system
+clock. This option disables the use of the cross timestamping.
 ::
 +
 Examples of the directive are:
diff --git a/ntp_io_linux.c b/ntp_io_linux.c
index 686d175..7a9d242 100644
--- a/ntp_io_linux.c
+++ b/ntp_io_linux.c
@@ -62,6 +62,7 @@ struct Interface {
   int if_index;
   int phc_fd;
   int phc_mode;
+  int phc_nocrossts;
   /* Link speed in mbit/s */
   int link_speed;
   /* Start of UDP data at layer 2 for IPv4 and IPv6 */
@@ -165,6 +166,7 @@ add_interface(CNF_HwTsInterface *conf_iface)
   iface->if_index = if_index;
   iface->phc_fd = phc_fd;
   iface->phc_mode = 0;
+  iface->phc_nocrossts = conf_iface->nocrossts;
 
   /* Start with 1 gbit and no VLANs or IPv4/IPv6 options */
   iface->link_speed = 1000;
@@ -368,8 +370,8 @@ process_hw_timestamp(struct Interface *iface, struct timespec *hw_ts,
   int l2_length;
 
   if (HCL_NeedsNewSample(iface->clock, &local_ts->ts)) {
-    if (!SYS_Linux_GetPHCSample(iface->phc_fd, 0, iface->precision, &iface->phc_mode,
-                                &sample_phc_ts, &sample_sys_ts, &err))
+    if (!SYS_Linux_GetPHCSample(iface->phc_fd, iface->phc_nocrossts, iface->precision,
+                                &iface->phc_mode, &sample_phc_ts, &sample_sys_ts, &err))
       return;
 
     LCL_CookTime(&sample_sys_ts, &sample_local_ts, NULL);