diff --git a/src/network/networkd-dhcp-common.c b/src/network/networkd-dhcp-common.c
index cc0a490b1d..606ae9f3c2 100644
--- a/src/network/networkd-dhcp-common.c
+++ b/src/network/networkd-dhcp-common.c
@@ -149,38 +149,6 @@ int config_parse_dhcp_use_dns(
         return 0;
 }
 
-int config_parse_dhcp_use_sip(
-                const char* unit,
-                const char *filename,
-                unsigned line,
-                const char *section,
-                unsigned section_line,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
-
-        Network *network = data;
-        int r;
-
-        assert(filename);
-        assert(lvalue);
-        assert(rvalue);
-        assert(data);
-
-        r = parse_boolean(rvalue);
-        if (r < 0) {
-                log_syntax(unit, LOG_ERR, filename, line, r,
-                           "Failed to parse UseSIP=%s, ignoring assignment: %m", rvalue);
-                return 0;
-        }
-
-        network->dhcp_use_sip = r;
-
-        return 0;
-}
-
 int config_parse_dhcp_use_ntp(
                 const char* unit,
                 const char *filename,
diff --git a/src/network/networkd-dhcp-common.h b/src/network/networkd-dhcp-common.h
index 2be9abba62..01400a2385 100644
--- a/src/network/networkd-dhcp-common.h
+++ b/src/network/networkd-dhcp-common.h
@@ -46,7 +46,6 @@ CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_route_metric);
 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_dns);
 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_domains);
 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_ntp);
-CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_sip);
 CONFIG_PARSER_PROTOTYPE(config_parse_iaid);
 CONFIG_PARSER_PROTOTYPE(config_parse_section_route_table);
 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_class);