diff --git a/include/sigar_format.h b/include/sigar_format.h
index 620a8a21..2f9c8d4a 100644
--- a/include/sigar_format.h
+++ b/include/sigar_format.h
@@ -49,8 +49,9 @@ SIGAR_DECLARE(int) sigar_net_address_to_string(sigar_t *sigar,
                                                sigar_net_address_t *address,
                                                char *addr_str);
 
-SIGAR_DECLARE(sigar_uint32_t) sigar_net_address_hash(sigar_net_address_t *address);
+SIGAR_DECLARE(const char *)sigar_net_scope_to_string(int type);
 
+SIGAR_DECLARE(sigar_uint32_t) sigar_net_address_hash(sigar_net_address_t *address);
 
 SIGAR_DECLARE(const char *)sigar_net_connection_type_get(int type);
 
diff --git a/src/sigar_format.c b/src/sigar_format.c
index 5aab7eb2..0be1f3a5 100644
--- a/src/sigar_format.c
+++ b/src/sigar_format.c
@@ -406,6 +406,24 @@ SIGAR_DECLARE(int) sigar_net_address_to_string(sigar_t *sigar,
     }
 }
 
+SIGAR_DECLARE(const char *)sigar_net_scope_to_string(int type)
+{
+    switch (type) {
+    case SIGAR_IPV6_ADDR_ANY:
+        return "Global";
+    case SIGAR_IPV6_ADDR_LOOPBACK:
+        return "Host";
+    case SIGAR_IPV6_ADDR_LINKLOCAL:
+        return "Link";
+    case SIGAR_IPV6_ADDR_SITELOCAL:
+        return "Site";
+    case SIGAR_IPV6_ADDR_COMPATv4:
+        return "Compat";
+    default:
+        return "Unknown";
+    }
+}
+
 SIGAR_DECLARE(sigar_uint32_t) sigar_net_address_hash(sigar_net_address_t *address)
 {
     sigar_uint32_t hash = 0;