diff --git a/lib/main/core/pistringlist.h b/lib/main/core/pistringlist.h
index 6e81f034..141b1478 100644
--- a/lib/main/core/pistringlist.h
+++ b/lib/main/core/pistringlist.h
@@ -83,7 +83,7 @@ public:
 	PIStringList & operator =(const PIStringList & o) {PIDeque<PIString>::operator=(o); return *this;}
 
 	PIStringList & operator <<(const PIString & str) {append(str); return *this;}
-	PIStringList & operator <<(PIString && str) {append(str); return *this;}
+	PIStringList & operator <<(PIString && str) {append(std::move(str)); return *this;}
 	PIStringList & operator <<(const PIStringList & sl) {append(sl); return *this;}
 
 };
diff --git a/main.cpp b/main.cpp
index 7832f59b..8e7a86b4 100644
--- a/main.cpp
+++ b/main.cpp
@@ -41,11 +41,12 @@ int main() {
 		/*PICodeParser cp;
 		cp.parseFile("SH_plugin_base.h");*/
 		PIStringList sl;
-		sl.reserve(50000);
-		for (int i = 0; i < 50000; ++i) {
-//			PIString s("1234567890-=");
-			sl.push_back(PIString("1234567890-="));
-			//sl << PIString("1234567890-=");
+		sl.reserve(500000);
+		for (int i = 0; i < 500000; ++i) {
+			//PIString s("1234567890-=");
+			//sl << s;
+			//sl.push_back(PIString("1234567890-="));
+			sl << PIString("1234567890-=");
 		}
 		double ms = tm.elapsed_m();
 		if (min < 0) min = ms;