diff --git a/lib/ETHSPI/esp_eth_mac_w5500.c b/lib/ETHSPI/esp_eth_mac_w5500.c
index bb356529..71aaf04d 100644
--- a/lib/ETHSPI/esp_eth_mac_w5500.c
+++ b/lib/ETHSPI/esp_eth_mac_w5500.c
@@ -11,6 +11,9 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
+#if defined(HASP_USE_ETHSPI)
+
 #include <string.h>
 #include <stdlib.h>
 #include <sys/cdefs.h>
@@ -688,3 +691,5 @@ err:
     }
     return ret;
 }
+
+#endif
\ No newline at end of file