diff --git a/src/libnm-client-impl/nm-ip-config.c b/src/libnm-client-impl/nm-ip-config.c
index ad5f08f814..ef3dcca1a5 100644
--- a/src/libnm-client-impl/nm-ip-config.c
+++ b/src/libnm-client-impl/nm-ip-config.c
@@ -180,6 +180,7 @@ _notify_update_prop_nameservers(NMClient               *client,
                             goto next;
                         nameserver = g_steal_pointer(&val_str);
                     } else if (nm_streq(key, "uri")) {
+                        g_free(nameserver);
                         nameserver = g_variant_dup_string(val, NULL);
                     }
 next: