diff --git a/source/glest_game/graphics/renderer.cpp b/source/glest_game/graphics/renderer.cpp
index fcbfd0271..ff73541c9 100644
--- a/source/glest_game/graphics/renderer.cpp
+++ b/source/glest_game/graphics/renderer.cpp
@@ -458,7 +458,10 @@ void Renderer::renderParticleManager(ResourceScope rs){
 }
 
 void Renderer::swapBuffers(){
+
 	//glFlush(); // should not be required - http://www.opengl.org/wiki/Common_Mistakes
+	glFlush(); // <--- this might actually be needed for better Render performance???
+
 	GraphicsInterface::getInstance().getCurrentContext()->swapBuffers();
 }