diff --git a/output.cc b/output.cc
index 55f787580..ef77c7f8d 100644
--- a/output.cc
+++ b/output.cc
@@ -252,10 +252,16 @@ static void print_xml_service(const struct serviceDeductions *sd) {
 /* Show a fatal error explaining that an interface is not Ethernet and won't
    work on Windows. Do nothing if --send-ip (PACKET_SEND_IP_STRONG) was used. */
 void win32_fatal_raw_sockets(const char *devname) {
-  if ((o.sendpref & PACKET_SEND_IP_STRONG) == 0) {
+  if ((o.sendpref & PACKET_SEND_IP_STRONG) == 0)
+    return;
+
+  if (devname != NULL) {
     fatal("Only ethernet devices can be used for raw scans on Windows, and\n"
           "\"%s\" is not an ethernet device. Use the --unprivileged option\n"
 	  "for this scan.", devname);
+  } else {
+    fatal("Only ethernet devices can be used for raw scans on Windows. Use\n"
+          "the --unprivileged option for this scan.", devname);
   }
 }