diff --git a/src/dmg/GB.cpp b/src/dmg/GB.cpp
index 7f86e579..58ff3664 100644
--- a/src/dmg/GB.cpp
+++ b/src/dmg/GB.cpp
@@ -1091,20 +1091,10 @@ void  gbWriteMemory(register u16 address, register u8 value)
       //      (value & 0x7c);
       gbMemory[0xff41] = register_STAT = (value & 0xf8) | (register_STAT & 0x07); // fix ?
       // GB bug from Devrs FAQ
-      // Corrected : it happens if Lcd Mode<2, but also if LY == LYC whatever
-      // Lcd Mode is, and if !gbInt48Signal in all cases. The screen being off
-      // doesn't matter (the bug will still happen).
-      // That fixes 'Satoru Nakajima - F-1 Hero' crash bug.
+      // proper fix
+       gbInt48Signal &= ((register_STAT>>3) & 0xF);
 
-      if((gbHardware & 5) && (((!gbInt48Signal) && (gbLcdMode<2) && (register_LCDC & 0x80)) ||
-          (register_LY == register_LYC)))
-      {
-        gbMemory[0xff0f] = register_IF |=2;
-      }
-
-      gbInt48Signal &= ((register_STAT>>3) & 0xF);
-
-      if((register_LCDC & 0x80)) {
+       if((register_LCDC & 0x80)) {
         if ((register_STAT & 0x08) && (gbLcdMode == 0))
         {
           if (!gbInt48Signal)