diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 0d2b8c2e32b06..d44f477b73764 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -388,7 +388,6 @@ impl MappableCommand {
         yank_main_selection_to_clipboard, "Yank main selection to clipboard",
         yank_joined_to_primary_clipboard, "Join and yank selections to primary clipboard",
         yank_main_selection_to_primary_clipboard, "Yank main selection to primary clipboard",
-        yank_diagnostic, "Yank diagnostic(s) under primary cursor to register, or clipboard by default",
         replace_with_yanked, "Replace with yanked text",
         replace_selections_with_clipboard, "Replace selections by clipboard content",
         replace_selections_with_primary_clipboard, "Replace selections by primary clipboard",
@@ -5520,33 +5519,6 @@ fn increment_impl(cx: &mut Context, increment_direction: IncrementDirection) {
     }
 }
 
-fn yank_diagnostic(cx: &mut Context) {
-    let (view, doc) = current_ref!(cx.editor);
-    let primary = doc.selection(view.id).primary();
-
-    let diag: Vec<_> = doc
-        .diagnostics()
-        .iter()
-        .filter(|d| primary.overlaps(&helix_core::Range::new(d.range.start, d.range.end)))
-        .map(|d| d.message.clone())
-        .collect();
-    let n = diag.len();
-    if n == 0 {
-        cx.editor
-            .set_error("No diagnostics under primary selection");
-        return;
-    }
-
-    let reg = cx.register.unwrap_or('+');
-    match cx.editor.registers.write(reg, diag) {
-        Ok(_) => cx.editor.set_status(format!(
-            "Yanked {n} diagnostic{} to register {reg}",
-            if n == 1 { "" } else { "s" }
-        )),
-        Err(err) => cx.editor.set_error(err.to_string()),
-    }
-}
-
 fn record_macro(cx: &mut Context) {
     if let Some((reg, mut keys)) = cx.editor.macro_recording.take() {
         // Remove the keypress which ends the recording
diff --git a/helix-term/src/commands/typed.rs b/helix-term/src/commands/typed.rs
index b7ceeba59a180..6f21bef159292 100644
--- a/helix-term/src/commands/typed.rs
+++ b/helix-term/src/commands/typed.rs
@@ -2414,6 +2414,48 @@ fn move_buffer(
     Ok(())
 }
 
+fn yank_diagnostic(
+    cx: &mut compositor::Context,
+    args: &[Cow<str>],
+    event: PromptEvent,
+) -> anyhow::Result<()> {
+    if event != PromptEvent::Validate {
+        return Ok(());
+    }
+
+    let (view, doc) = current_ref!(cx.editor);
+    let primary = doc.selection(view.id).primary();
+
+    // Look only for diagnostics that intersect with the primary selection
+    let diag: Vec<_> = doc
+        .diagnostics()
+        .iter()
+        .filter(|d| primary.overlaps(&helix_core::Range::new(d.range.start, d.range.end)))
+        .map(|d| d.message.clone())
+        .collect();
+    let n = diag.len();
+    if n == 0 {
+        bail!("No diagnostics under primary selection");
+    }
+
+    let reg = match args.get(0) {
+        Some(s) => {
+            ensure!(s.chars().count() == 1, format!("Invalid register {s}"));
+            s.chars().next().unwrap()
+        }
+        None => '+',
+    };
+
+    match cx.editor.registers.write(reg, diag) {
+        Ok(_) => cx.editor.set_status(format!(
+            "Yanked {n} diagnostic{} to register {reg}",
+            if n == 1 { "" } else { "s" }
+        )),
+        Err(err) => cx.editor.set_error(err.to_string()),
+    }
+    Ok(())
+}
+
 pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[
     TypableCommand {
         name: "quit",
@@ -3021,6 +3063,13 @@ pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[
         fun: move_buffer,
         signature: CommandSignature::positional(&[completers::filename]),
     },
+    TypableCommand {
+        name: "yank-diagnostic",
+        aliases: &[],
+        doc: "Yank diagnostic(s) under primary cursor to register, or clipboard by default",
+        fun: yank_diagnostic,
+        signature: CommandSignature::none(),
+    },
 ];
 
 pub static TYPABLE_COMMAND_MAP: Lazy<HashMap<&'static str, &'static TypableCommand>> =