diff --git a/testing/sensortest/sensortest.c b/testing/sensortest/sensortest.c
index 55f5aa78c..12649059d 100644
--- a/testing/sensortest/sensortest.c
+++ b/testing/sensortest/sensortest.c
@@ -166,8 +166,8 @@ static void print_gps(const char *buffer, const char *name)
 {
   struct sensor_event_gps *event = (struct sensor_event_gps *)buffer;
 
-  printf("%s: timestamp: %llu time_utc: %llu latitude: %f longitude: %f "
-         "altitude: %f altitude_ellipsoid: %f eph: %f epv: %f "
+  printf("%s: timestamp:%" PRIu64 " time_utc: %" PRIu64 " latitude: %f "
+         "longitude: %f altitude: %f altitude_ellipsoid: %f eph: %f epv: %f "
          "hdop: %f vdop: %f ground_speed: %f course: %f satellites_used:"
          " %u\n", name, event->timestamp, event->time_utc, event->latitude,
          event->longitude, event->altitude, event->altitude_ellipsoid,
@@ -180,7 +180,7 @@ static void print_gps_satellite(FAR const char *buffer, FAR const char *name)
   FAR struct sensor_event_gps_satellite *event =
         (struct sensor_event_gps_satellite *)buffer;
 
-  printf("%s: timestamp: %llu count: %u satellites: %u", name,
+  printf("%s: timestamp: %" PRIu64 " count: %u satellites: %u", name,
          event->timestamp, event->count, event->satellites);
 }