diff --git a/nse_main.cc b/nse_main.cc
index 422ff15a8..f2e0db1d8 100644
--- a/nse_main.cc
+++ b/nse_main.cc
@@ -466,6 +466,8 @@ int process_preparerunlevels(std::list<struct thread_record> torun_threads) {
 		if(runlevel_idx < (*runlevel_iter).runlevel) {
 			runlevel_idx = (*runlevel_iter).runlevel;
 			current_runlevel.clear();
+			//push_back an empty in which we store all scripts of the current 
+			//runlevel...
 			torun_scripts.push_back(current_runlevel);
 		}
 
diff --git a/output.cc b/output.cc
index 0c68c0250..3feb27c27 100644
--- a/output.cc
+++ b/output.cc
@@ -779,8 +779,9 @@ char* formatScriptOutput(struct script_scan_result ssr) {
 
 	// delete the unwanted trailing newline
 	pos = result.rfind(sep);
-	result.erase(pos, strlen(sep));
-	
+	if(pos!=std::string::npos){
+		result.erase(pos, strlen(sep));
+	}
 	c_result = strdup(result.c_str());
 
 	return c_result;