diff --git a/service_scan.cc b/service_scan.cc
index 52338ed07..a9aa183f5 100644
--- a/service_scan.cc
+++ b/service_scan.cc
@@ -2673,6 +2673,10 @@ int service_scan(std::vector<Target *> &Targets) {
 
   nsp_setdevice(nsp, o.device);
 
+  if (o.proxy_chain) {
+    nsock_set_proxychain(nsp, o.proxy_chain);
+  }
+
 #if HAVE_OPENSSL
   /* We don't care about connection security in version detection. */
   nsp_ssl_init_max_speed(nsp);