diff --git a/sys/contrib/ena-com/ena_defs/ena_admin_defs.h b/sys/contrib/ena-com/ena_defs/ena_admin_defs.h
--- a/sys/contrib/ena-com/ena_defs/ena_admin_defs.h
+++ b/sys/contrib/ena-com/ena_defs/ena_admin_defs.h
@@ -962,19 +962,8 @@
 	uint16_t enabled_input_sort;
 };
 
-enum ena_admin_os_type {
-	ENA_ADMIN_OS_LINUX                          = 1,
-	ENA_ADMIN_OS_WIN                            = 2,
-	ENA_ADMIN_OS_DPDK                           = 3,
-	ENA_ADMIN_OS_FREEBSD                        = 4,
-	ENA_ADMIN_OS_IPXE                           = 5,
-	ENA_ADMIN_OS_ESXI                           = 6,
-	ENA_ADMIN_OS_MACOS                          = 7,
-	ENA_ADMIN_OS_GROUPS_NUM                     = 7,
-};
-
 struct ena_admin_host_info {
-	/* defined in enum ena_admin_os_type */
+	/* Host OS type defined as ENA_ADMIN_OS_* */
 	uint32_t os_type;
 
 	/* os distribution string format */
diff --git a/sys/contrib/ena-com/ena_plat.h b/sys/contrib/ena-com/ena_plat.h
--- a/sys/contrib/ena-com/ena_plat.h
+++ b/sys/contrib/ena-com/ena_plat.h
@@ -476,4 +476,6 @@
 
 #define ENA_BITS_PER_U64(bitmap) (bitcount64(bitmap))
 
+#define ENA_ADMIN_OS_FREEBSD 4
+
 #endif /* ENA_PLAT_H_ */