diff --git a/src/vrEmuTms9918.c b/src/vrEmuTms9918.c
index 2f8e3d7..685e2f3 100644
--- a/src/vrEmuTms9918.c
+++ b/src/vrEmuTms9918.c
@@ -695,7 +695,7 @@ VR_EMU_TMS9918_DLLEXPORT void __time_critical_func(vrEmuTms9918ScanLine)(VrEmuTm
       break;
   }
 
-  if (y == TMS9918_PIXELS_Y - 1)
+  if (y == TMS9918_PIXELS_Y - 1 && (tms9918->registers[1] & TMS_R1_INT_ENABLE))
   {
     tms9918->status |= STATUS_INT;
   }