diff --git a/src/roxy.rs b/src/roxy.rs
index f7f6f0d..aa70d9c 100644
--- a/src/roxy.rs
+++ b/src/roxy.rs
@@ -21,7 +21,7 @@ impl<P: Parse> AsParse for P {
     }
 }
 
-pub trait Parse {
+pub trait Parse: AsParse {
     fn parse(&mut self, path: &str, src: &[u8], dst: &mut Vec<u8>) -> Result<(), Error>;
 }