Index: src/protocol.c
--- src/protocol.c.orig
+++ src/protocol.c
@@ -31,6 +31,12 @@
 #include <net/ethernet.h>
 #include <sys/types.h>
 #include <sys/socket.h>
+#elif defined(__OpenBSD__)
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
 #else
 #include <netinet/ether.h>
 #endif
@@ -553,7 +559,7 @@ int query_mndp_or_mac(char *address, unsigned char *ds
 		}
 	} else {
 		/* Convert mac address string to ether_addr struct */
-#if defined(__APPLE__)
+#if defined(__APPLE__) || defined(__OpenBSD__)
 		struct ether_addr* dstmac_buf = ether_aton(address);
 		memcpy(dstmac, dstmac_buf, sizeof(struct ether_addr));
 #else