diff --git a/framebuffer.go b/framebuffer.go
index f2f259c..6de4790 100644
--- a/framebuffer.go
+++ b/framebuffer.go
@@ -122,6 +122,8 @@ func (f *Framebuffer) SetPixel(x int, y int, r uint32, g uint32, b uint32, a uin
 
 	location := (x+f.Xoffset)*(f.BitsPerPixel/8) + (y+f.Yoffset)*f.LineLength
 
+	fmt.Println("location :: ", location, " / data len:: ", len(f.Data))
+
 	f.Data[location+3] = byte(a & 0xff)
 	f.Data[location+2] = byte(r & 0xff)
 	f.Data[location+1] = byte(g & 0xff)