diff --git a/nse_main.cc b/nse_main.cc
index f2e0db1d8..eca4f4497 100644
--- a/nse_main.cc
+++ b/nse_main.cc
@@ -279,6 +279,8 @@ int process_mainloop(lua_State* l) {
 		}
 	}
 
+	progress.endTask(NULL, NULL);
+
 	return SCRIPT_ENGINE_SUCCESS;
 }
 
diff --git a/nse_pcrelib.cc b/nse_pcrelib.cc
index 95d402e96..f6b68d5e0 100644
--- a/nse_pcrelib.cc
+++ b/nse_pcrelib.cc
@@ -110,7 +110,6 @@ static const unsigned char *Lpcre_maketables(lua_State *L, int stackpos)
 	tables = pcre_maketables();              /* make tables with new locale */
 	(void)setlocale(LC_CTYPE, old_locale);         /* restore the old locale */
 
-	free(old_locale);
 	free(locale);
 	return tables;
 }
@@ -158,7 +157,7 @@ static void Lpcre_getargs(lua_State *L, pcre2 **pud, const char **text,
 		size_t *text_len)
 {
 	*pud = (pcre2 *)luaL_checkudata(L, 1, pcre_handle);
-	if(*pud != NULL)
+	if(*pud == NULL)
 		(void)luaL_argerror(L, 1, ("compiled regexp expected"));
 	*text = luaL_checklstring(L, 2, text_len);
 }
diff --git a/output.cc b/output.cc
index 0b159c052..03eccc840 100644
--- a/output.cc
+++ b/output.cc
@@ -1409,6 +1409,11 @@ void printosscanoutput(Target *currenths) {
 	distance = currenths->distance;
 
   log_write(LOG_XML, "<os>");
+  if (FPR->osscan_opentcpport > 0) {
+    log_write(LOG_XML, 
+	      "<portused state=\"open\" proto=\"tcp\" portid=\"%hu\" />\n",
+	      FPR->osscan_opentcpport);
+  }
   if (FPR->osscan_closedtcpport > 0) {
     log_write(LOG_XML, 
 	      "<portused state=\"closed\" proto=\"tcp\" portid=\"%hu\" />\n",