diff --git a/src/integrated.rs b/src/integrated.rs
index 341c448..c2dd810 100644
--- a/src/integrated.rs
+++ b/src/integrated.rs
@@ -99,11 +99,7 @@ pub fn generate_flatmap(xml: &path::Path, out: Option<&path::Path>) -> Result<()
     }
     let f: Box<dyn Write> = match out {
         Some(f) => {
-            let file = File::options()
-                .create(true)
-                .write(true)
-                .truncate(true)
-                .open(f)?;
+            let file = File::options().write(true).truncate(true).open(f)?;
             Box::new(BufWriter::new(file))
         }
         None => Box::new(io::stdout()),
diff --git a/src/validator.rs b/src/validator.rs
index 74aa4c3..17a379e 100644
--- a/src/validator.rs
+++ b/src/validator.rs
@@ -16,7 +16,7 @@ pub struct FlattenedRegisterEntry<'a> {
 }
 
 /// Flattened register map.
-pub type FlattenedRegisterMap<'a> = Vec<Option<FlattenedRegisterEntry<'a>>>;
+type FlattenedRegisterMap<'a> = Vec<Option<FlattenedRegisterEntry<'a>>>;
 
 impl Module {
     /// Validate the address assignment, generating a flatten register map.