diff --git a/serial_link/protocol/data_link.c b/serial_link/protocol/byte_stuffer.c
similarity index 93%
rename from serial_link/protocol/data_link.c
rename to serial_link/protocol/byte_stuffer.c
index 71d53847..95ce8652 100644
--- a/serial_link/protocol/data_link.c
+++ b/serial_link/protocol/byte_stuffer.c
@@ -22,8 +22,8 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 */
 
-#include "protocol/data_link.h"
-#include "protocol/routing.h"
+#include "protocol/byte_stuffer.h"
+#include "protocol/frame_validator.h"
 
 void recv_byte(uint8_t data) {
 }
diff --git a/serial_link/protocol/data_link.h b/serial_link/protocol/byte_stuffer.h
similarity index 100%
rename from serial_link/protocol/data_link.h
rename to serial_link/protocol/byte_stuffer.h
diff --git a/serial_link/protocol/routing.h b/serial_link/protocol/frame_validator.h
similarity index 100%
rename from serial_link/protocol/routing.h
rename to serial_link/protocol/frame_validator.h
diff --git a/serial_link/tests/data_link_tests.c b/serial_link/tests/byte_stuffer_tests.c
similarity index 78%
rename from serial_link/tests/data_link_tests.c
rename to serial_link/tests/byte_stuffer_tests.c
index 1b7107e7..418d48f6 100644
--- a/serial_link/tests/data_link_tests.c
+++ b/serial_link/tests/byte_stuffer_tests.c
@@ -24,29 +24,29 @@ SOFTWARE.
 
 #include <cgreen/cgreen.h>
 #include <cgreen/mocks.h>
-#include "protocol/data_link.h"
-#include "protocol/data_link.c"
-#include "protocol/routing.h"
+#include "protocol/byte_stuffer.h"
+#include "protocol/byte_stuffer.c"
+#include "protocol/frame_validator.h"
 
-Describe(DataLink);
-BeforeEach(DataLink) {}
-AfterEach(DataLink) {}
+Describe(ByteStuffer);
+BeforeEach(ByteStuffer) {}
+AfterEach(ByteStuffer) {}
 
 void recv_frame(uint8_t* data, uint16_t size) {
     mock(data, size);
 }
 
-Ensure(DataLink, receives_no_frame_for_a_single_zero_byte) {
+Ensure(ByteStuffer, receives_no_frame_for_a_single_zero_byte) {
     never_expect(recv_frame);
     recv_byte(0);
 }
 
-Ensure(DataLink, receives_no_frame_for_a_single_FF_byte) {
+Ensure(ByteStuffer, receives_no_frame_for_a_single_FF_byte) {
     never_expect(recv_frame);
     recv_byte(0xFF);
 }
 
-Ensure(DataLink, receives_no_frame_for_a_single_random_byte) {
+Ensure(ByteStuffer, receives_no_frame_for_a_single_random_byte) {
     never_expect(recv_frame);
     recv_byte(0x4A);
 }