diff --git a/src/lib.rs b/src/lib.rs
index e81e069d..2a4904dc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1090,10 +1090,6 @@ pub trait StructOptInternal: StructOpt {
     {
         None
     }
-
-    fn augment_version<'a, 'b>(app: clap::App<'a, 'b>) -> clap::App<'a, 'b> {
-        app
-    }
 }
 
 impl<T: StructOpt> StructOpt for Box<T> {
@@ -1121,9 +1117,4 @@ impl<T: StructOptInternal> StructOptInternal for Box<T> {
     fn augment_clap<'a, 'b>(app: clap::App<'a, 'b>) -> clap::App<'a, 'b> {
         <T as StructOptInternal>::augment_clap(app)
     }
-
-    #[doc(hidden)]
-    fn augment_version<'a, 'b>(app: clap::App<'a, 'b>) -> clap::App<'a, 'b> {
-        <T as StructOptInternal>::augment_version(app)
-    }
 }
diff --git a/tests/issues.rs b/tests/issues.rs
index 7cff88b0..4f4ec93d 100644
--- a/tests/issues.rs
+++ b/tests/issues.rs
@@ -80,7 +80,7 @@ fn issue_324() {
     #[structopt(version = my_version())]
     struct Opt {
         #[structopt(subcommand)]
-        cmd: Option<SubCommand>,
+        _cmd: Option<SubCommand>,
     }
 
     #[derive(StructOpt)]