diff --git a/Components/9918/9918.cpp b/Components/9918/9918.cpp
index 44db295bf..103de4c50 100644
--- a/Components/9918/9918.cpp
+++ b/Components/9918/9918.cpp
@@ -87,7 +87,7 @@ Base::Base(Personality p) :
 TMS9918::TMS9918(Personality p):
 	Base(p) {
 //	crt_->set_video_signal(Outputs::Display::VideoSignal::RGB);
-	crt_.set_visible_area(Outputs::Display::Rect(0.055f, 0.025f, 0.9f, 0.9f));
+	crt_.set_visible_area(Outputs::Display::Rect(0.07f, 0.0375f, 0.875f, 0.875f));	// 0.055f, 0.025f
 
 	// The TMS remains in-phase with the NTSC colour clock; this is an empirical measurement
 	// intended to produce the correct relationship between the hard edges between pixels and