diff --git a/makefile b/makefile
index 71dcf0c..d79a1df 100644
--- a/makefile
+++ b/makefile
@@ -21,6 +21,9 @@ FEAT_CFLAGS :=
 ifneq ($(shell grep --no-messages clock_adjtime /usr/include/bits/time.h),)
 FEAT_CFLAGS += -D_GNU_SOURCE -DHAVE_CLOCK_ADJTIME
 endif
+ifneq ($(shell grep --no-messages HWTSTAMP_TX_ONESTEP_SYNC $(KBUILD_OUTPUT)/usr/include/linux/net_tstamp.h),)
+FEAT_CFLAGS += -DHAVE_ONESTEP_SYNC
+endif
 
 DEBUG	=
 CC	= $(CROSS_COMPILE)gcc
diff --git a/missing.h b/missing.h
index 3c2b9d8..99a8d83 100644
--- a/missing.h
+++ b/missing.h
@@ -44,6 +44,12 @@
 #define FD_TO_CLOCKID(fd)	((~(clockid_t) (fd) << 3) | CLOCKFD)
 #define CLOCKID_TO_FD(clk)	((unsigned int) ~((clk) >> 3))
 
+#ifndef HAVE_ONESTEP_SYNC
+enum _missing_hwtstamp_tx_types {
+	HWTSTAMP_TX_ONESTEP_SYNC = 2,
+}
+#endif
+
 #ifndef HAVE_CLOCK_ADJTIME
 static inline int clock_adjtime(clockid_t id, struct timex *tx)
 {