diff --git a/4J_Render/Windows64/4J_Render.cpp b/4J_Render/Windows64/4J_Render.cpp
index 73492c4..f265c5d 100644
--- a/4J_Render/Windows64/4J_Render.cpp
+++ b/4J_Render/Windows64/4J_Render.cpp
@@ -43,7 +43,8 @@ void C4JRender::UpdateGamma(unsigned short usGamma)
 
 void C4JRender::SetVSync(bool vs)
 {
-	m_VSyncState = vs;
+	if(vs != m_VSyncState)
+		m_VSyncState = vs;
 }
 
 int C4JRender::GetVSync()