diff --git a/Target.h b/Target.h
index ee1e5f2d2..60dab8222 100644
--- a/Target.h
+++ b/Target.h
@@ -107,6 +107,7 @@
 #include "scan_engine.h"
 
 #include <list>
+#include <string>
 
 #ifndef INET6_ADDRSTRLEN
 #define INET6_ADDRSTRLEN 46
diff --git a/portlist.cc b/portlist.cc
index 5f55d2ee2..2bd7edafe 100644
--- a/portlist.cc
+++ b/portlist.cc
@@ -413,6 +413,7 @@ void PortList::setRPCProbeResults(u16 portno, int proto, int rpcs, unsigned long
 }
 
 
+#ifndef NOLUA
 void PortList::addScriptResult(u16 portno, int protocol, ScriptResult& sr) {
   Port *port;
 
@@ -420,6 +421,7 @@ void PortList::addScriptResult(u16 portno, int protocol, ScriptResult& sr) {
 
   port->scriptResults.push_back(sr);
 }
+#endif
 
 /*****************************************************************************/
 /* Convert protocol name from in.h to enum portlist_proto.
diff --git a/portlist.h b/portlist.h
index 99a0b4f4a..1fe1b20df 100644
--- a/portlist.h
+++ b/portlist.h
@@ -278,7 +278,9 @@ class PortList {
   void setRPCProbeResults(u16 portno, int proto, int rpc_status, unsigned long rpc_program, 
 			  unsigned int rpc_lowver, unsigned int rpc_highver);
 
+#ifndef NOLUA
   void addScriptResult(u16 portno, int protocol, ScriptResult& sr);
+#endif
 
   /* Cycles through the 0 or more "ignored" ports which should be
    consolidated for Nmap output.  They are returned sorted by the