diff --git a/Source/SysGL/Graphics/GraphicsContextGL.cpp b/Source/SysGL/Graphics/GraphicsContextGL.cpp
index 1ef29860..c72d8275 100644
--- a/Source/SysGL/Graphics/GraphicsContextGL.cpp
+++ b/Source/SysGL/Graphics/GraphicsContextGL.cpp
@@ -212,8 +212,11 @@ void GraphicsContextGL::EndFrame()
 void GraphicsContextGL::UpdateFrame( bool wait_for_vbl )
 {
 	glBindFramebuffer(GL_FRAMEBUFFER, 0);
-	SDL_GL_SwapWindow(gWindow);
 
+	if (gSdlRenderer == nullptr) {
+		SDL_GL_SwapWindow(gWindow);
+	}
+	
 //	if( gCleanSceneEnabled ) //TODO: This should be optional
 //	{
 	//	ClearColBuffer( c32(0xff000000) ); // ToDo : Use gFillColor instead?