1 files changed, 7 insertions, 0 deletions

diff --git a/serial_link/protocol/frame_validator.h b/serial_link/protocol/frame_validator.h
index c35fc2726..4a910d510 100644
--- a/serial_link/protocol/frame_validator.h
+++ b/serial_link/protocol/frame_validator.h
@@ -22,6 +22,13 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 */
 
+#ifndef SERIAL_LINK_FRAME_VALIDATOR_H
+#define SERIAL_LINK_FRAME_VALIDATOR_H
+
+#include <stdint.h>
+
 void validator_recv_frame(uint8_t link, uint8_t* data, uint16_t size);
 // The buffer pointed to by the data needs 4 additional bytes
 void validator_send_frame(uint8_t link, uint8_t* data, uint16_t size);
+
+#endif