diff --git a/imag-view/src/main.rs b/imag-view/src/main.rs
index 2fa7802b..16cc0b91 100644
--- a/imag-view/src/main.rs
+++ b/imag-view/src/main.rs
@@ -52,6 +52,11 @@ fn main() {
 
     let entry_id = rt.cli().value_of("id").unwrap(); // enforced by clap
 
+    if entry_id.contains("~") {
+        error!("The --id argument does not need the version part");
+        exit(1);
+    }
+
     if rt.cli().is_present("versions") {
         if let Err(e) = view_versions_of(entry_id, &rt) {
             trace_error(&e);
diff --git a/imag-view/src/ui.rs b/imag-view/src/ui.rs
index 54979f1f..45c05ed1 100644
--- a/imag-view/src/ui.rs
+++ b/imag-view/src/ui.rs
@@ -14,7 +14,7 @@ pub fn build_ui<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
             .long("version")
             .short("V")
             .takes_value(true)
-            .required(false)
+            .required(true)
             .help("View this version (youngest if not specified)")
             .value_name("VERSION"))
 
diff --git a/imag-view/src/viewer/stdout.rs b/imag-view/src/viewer/stdout.rs
index a42af1c1..18536da6 100644
--- a/imag-view/src/viewer/stdout.rs
+++ b/imag-view/src/viewer/stdout.rs
@@ -24,6 +24,7 @@ impl Viewer for StdoutViewer {
         }
 
         if vi.view_header {
+            debug!("Going to display header: {:?}", vi.entry.get_header().header());
             println!("{}", encode_str(vi.entry.get_header().header()));
         }