diff --git a/src/gl/system/gl_framebuffer.cpp b/src/gl/system/gl_framebuffer.cpp
index ed0d07bd56..d99566a5a3 100644
--- a/src/gl/system/gl_framebuffer.cpp
+++ b/src/gl/system/gl_framebuffer.cpp
@@ -197,7 +197,7 @@ void OpenGLFrameBuffer::Update()
 	Unlock();
 	CheckBench();
 
-	if (Windowed)
+	if (!IsFullscreen())
 	{
 		int clientWidth = GetClientWidth();
 		int clientHeight = GetClientHeight();