diff --git a/NmapOps.cc b/NmapOps.cc
index 6149ae998..1775b030c 100644
--- a/NmapOps.cc
+++ b/NmapOps.cc
@@ -415,7 +415,7 @@ bool NmapOps::UDPScan() {
 bool NmapOps::RawScan() {
   if (ackscan||finscan||idlescan||ipprotscan||maimonscan||nullscan||osscan||synscan||udpscan||windowscan||xmasscan||sctpinitscan||sctpcookieechoscan||traceroute)
     return true;
-  if (pingtype & (PINGTYPE_ICMP_PING|PINGTYPE_ICMP_MASK|PINGTYPE_ICMP_TS|PINGTYPE_TCP_USE_ACK|PINGTYPE_UDP|PINGTYPE_SCTP_INIT))
+  if (pingtype & (PINGTYPE_ICMP_PING|PINGTYPE_ICMP_MASK|PINGTYPE_ICMP_TS|PINGTYPE_TCP_USE_ACK|PINGTYPE_UDP|PINGTYPE_PROTO|PINGTYPE_SCTP_INIT))
     return true;
   /* A SYN scan will only generate raw packets if nmap is running as root.
      Otherwise, it becomes a connect scan. */