diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
index a78ad6d93b..701bffe5ee 100644
--- a/src/network/networkd-address.c
+++ b/src/network/networkd-address.c
@@ -24,7 +24,7 @@
 #define ADDRESSES_PER_LINK_MAX 2048U
 #define STATIC_ADDRESSES_PER_NETWORK_MAX 1024U
 
-static int address_flags_to_string_alloc(uint32_t flags, int family, char **ret) {
+int address_flags_to_string_alloc(uint32_t flags, int family, char **ret) {
         _cleanup_free_ char *str = NULL;
         static const struct {
                 uint32_t flag;
diff --git a/src/network/networkd-address.h b/src/network/networkd-address.h
index 64ed6164b5..41c4ce6fa4 100644
--- a/src/network/networkd-address.h
+++ b/src/network/networkd-address.h
@@ -61,6 +61,8 @@ const char* format_lifetime(char *buf, size_t l, usec_t lifetime_usec) _warn_unu
 #define FORMAT_LIFETIME(lifetime) \
         format_lifetime((char[FORMAT_TIMESPAN_MAX+STRLEN("for ")]){}, FORMAT_TIMESPAN_MAX+STRLEN("for "), lifetime)
 
+int address_flags_to_string_alloc(uint32_t flags, int family, char **ret);
+
 int address_new(Address **ret);
 Address* address_free(Address *address);
 int address_get(Link *link, const Address *in, Address **ret);