diff --git a/MCL65+_PET/MCL65_PETDoctor.ino b/MCL65+_PET/MCL65_PETDoctor.ino
index 9055237..01e8d7a 100644
--- a/MCL65+_PET/MCL65_PETDoctor.ino
+++ b/MCL65+_PET/MCL65_PETDoctor.ino
@@ -176,6 +176,7 @@ void setup() {
   pinMode(PIN_DATAOUT7,    OUTPUT);
   pinMode(PIN_DATAOUT_OE_n,  OUTPUT); 
   digitalWriteFast(PIN_RDWR_n,  0x1);
+  digitalWriteFast(PIN_DATAOUT_OE_n,  0x1);
 
   Serial.begin(9600);
 }