diff --git a/scan_engine.cc b/scan_engine.cc
index 8534bc1fb..9dd093db4 100644
--- a/scan_engine.cc
+++ b/scan_engine.cc
@@ -2458,6 +2458,7 @@ static UltraProbe *sendConnectScanProbe(UltraScanInfo *USI, HostScanStats *hss,
   if (CP->sd == -1) pfatal("Socket creation in %s", __func__);
   unblock_socket(CP->sd);
   init_socket(CP->sd);
+  set_ttl(CP->sd, o.ttl);
   if (hss->target->TargetSockAddr(&sock, &socklen) != 0) {
     fatal("Failed to get target socket address in %s", __func__);
   }
diff --git a/tcpip.cc b/tcpip.cc
index d32fae852..3ce19adfb 100644
--- a/tcpip.cc
+++ b/tcpip.cc
@@ -161,6 +161,16 @@ setsockopt(sd, IPPROTO_IP, IP_HDRINCL, (const char *) &one, sizeof(one));
 #endif
 }
 
+void set_ttl(int sd, int ttl)
+{
+#ifdef IP_TTL
+	if (sd == -1)
+		return;
+
+	setsockopt(sd, IPPROTO_IP, IP_TTL, &ttl, sizeof ttl);
+#endif
+}
+
 // Takes a protocol number like IPPROTO_TCP, IPPROTO_UDP, or
 // IPPROTO_IP and returns a ascii representation (or "unknown" if it
 // doesn't recognize the number).  If uppercase is true, the returned
diff --git a/tcpip.h b/tcpip.h
index 611e5399e..03267a53e 100644
--- a/tcpip.h
+++ b/tcpip.h
@@ -663,6 +663,8 @@ pcap_if_t *getpcapinterfaces();
 struct sys_route *getsysroutes(int *howmany);
 void sethdrinclude(int sd);
 
+void set_ttl(int sd, int ttl);
+
 /* Fill buf (up to buflen -- truncate if necessary but always
    terminate) with a short representation of the packet stats.
    Returns buf.  Aborts if there is a problem. */