diff --git a/src/rstd/inlining.rs b/src/rstd/inlining.rs
index 64529e7..9fcc9e7 100644
--- a/src/rstd/inlining.rs
+++ b/src/rstd/inlining.rs
@@ -66,6 +66,9 @@ impl<'a: 'c, 'c, Ctx: Context<'a>> InlineableDeCtx<'a, Ctx> for InlineableDeCtxT
     }
 }
 
+pub type IParseResult<'a, Ctx, F, I> =
+    Result<(Mtbl<'a, Ctx, F>, I), <F as Factory<'a, Ctx>>::ParseError>;
+
 /// This factory should return an error on EOF.
 pub trait InlineableFactory<'a, Ctx: Context<'a>>: Factory<'a, Ctx> {
     fn extension_error(&self, tail: &[u8]) -> Self::ParseError;