--- a/src/ntpclient.c	2018-08-27 20:38:12.000000000 +0200
+++ b/src/ntpclient.c	2019-08-19 20:11:59.000000000 +0200
@@ -40,6 +40,7 @@
 #include <unistd.h>
 #include <errno.h>
 #ifdef PRECISION_SIOCGSTAMP
+#include <linux/sockios.h>
 #include <sys/ioctl.h>
 #endif
 #ifdef USE_OBSOLETE_GETTIMEOFDAY