diff --git a/mem/mem.go b/mem/mem.go
index a7e51ba..cbb3041 100644
--- a/mem/mem.go
+++ b/mem/mem.go
@@ -73,9 +73,9 @@ func Copy(dst, src unsafe.Pointer, size uintptr) unsafe.Pointer {
 // Returns dst.
 func Clear(dst unsafe.Pointer, value byte, count uintptr) unsafe.Pointer {
 	b := (*byte)(dst)
-	for range count { // @todo: loop unroll/maybe use asm?
+	for range count {
 		*b = value
-		b = (*byte)(unsafe.Add(dst, 1))
+		b = (*byte)(unsafe.Add(unsafe.Pointer(b), 1))
 	}
 	return dst
 }