diff --git a/main.go b/main.go
index 746f390..836a7ee 100644
--- a/main.go
+++ b/main.go
@@ -57,7 +57,7 @@ func main() {
 		c := make([]byte, 0xFFFF)
 		copy(c, b[p.PLength:])
 		b = c
-		read -= p.PLength
+		read -= int(p.PLength)
 	}
 
 }