diff --git a/src/emucore/Genesis.cxx b/src/emucore/Genesis.cxx
index 7b97d86f1..443c704ee 100644
--- a/src/emucore/Genesis.cxx
+++ b/src/emucore/Genesis.cxx
@@ -27,6 +27,7 @@ Genesis::Genesis(Jack jack, const Event& event, const System& system)
     myButtonCEvent   = Event::RightJoystickFire5;
 
   setPin(AnalogPin::Five, AnalogReadout::connectToVcc());
+  setPin(AnalogPin::Nine, AnalogReadout::connectToVcc());
 }
 
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