diff --git a/src/ppu.cpp b/src/ppu.cpp
index 960f13c2..cded0ae9 100644
--- a/src/ppu.cpp
+++ b/src/ppu.cpp
@@ -1074,7 +1074,8 @@ static void CheckSpriteHit(int p)
 
 	for(x=sphitx;x<(sphitx+8) && x<l;x++)
 	{
-		if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
+
+        if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64) && x < 255) 
 		{
 			PPU_status|=0x40;
 			//printf("Ha:  %d, %d, Hita: %d, %d, %d, %d, %d\n",p,p&~7,scanline,GETLASTPIXEL-16,&Plinef[x],Pline,Pline-Plinef);
@@ -2284,9 +2285,10 @@ int FCEUX_PPU_Loop(int skip) {
 								//1. is it sprite#0?
 								//2. is the bg pixel nonzero?
 								//then, it is spritehit.
-								if(oam[6] == 0 && pixel != 0)
+								if(oam[6] == 0 && (pixel & 3) != 0 &&
+                                   rasterpos < 255)
                                 {
-									PPU_status |= 0x40;
+                                    PPU_status |= 0x40;
                                 }
 								havepixel = true;