diff --git a/src/scpi/scpi_vxi.c b/src/scpi/scpi_vxi.c
index e28a77a3..b2324b71 100644
--- a/src/scpi/scpi_vxi.c
+++ b/src/scpi/scpi_vxi.c
@@ -20,9 +20,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "vxi.h"
 #include <rpc/rpc.h>
 #include <string.h>
-#include "vxi.h"
 #include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 #include "scpi.h"
diff --git a/src/scpi/vxi.h b/src/scpi/vxi.h
index 61a51f62..59ec4df3 100644
--- a/src/scpi/vxi.h
+++ b/src/scpi/vxi.h
@@ -3,6 +3,8 @@
  * It was generated using rpcgen.
  */
 
+#undef _POSIX_C_SOURCE
+
 #ifndef _VXI_H_RPCGEN
 #define _VXI_H_RPCGEN
 
diff --git a/src/scpi/vxi_clnt.c b/src/scpi/vxi_clnt.c
index 55a72dc2..313bfd7f 100644
--- a/src/scpi/vxi_clnt.c
+++ b/src/scpi/vxi_clnt.c
@@ -3,8 +3,8 @@
  * It was generated using rpcgen.
  */
 
-#include <memory.h> /* for memset */
 #include "vxi.h"
+#include <memory.h> /* for memset */
 
 /* Default timeout can be changed using clnt_control() */
 static struct timeval TIMEOUT = { 25, 0 };