diff --git a/pcsx2/gui/FrameForGS.cpp b/pcsx2/gui/FrameForGS.cpp
index de18b01bb6..718c21b386 100644
--- a/pcsx2/gui/FrameForGS.cpp
+++ b/pcsx2/gui/FrameForGS.cpp
@@ -217,7 +217,7 @@ void GSPanel::OnMouseEvent( wxMouseEvent& evt )
 	if( IsBeingDeleted() ) return;
 
 	// Do nothing for left-button event
-	if (!evt.Button(1)) {
+	if (!evt.Button(wxMOUSE_BTN_LEFT)) {
 		evt.Skip();
 		DoShowMouse();
 	}