diff --git a/crates/ty_server/src/server/api/requests/completion.rs b/crates/ty_server/src/server/api/requests/completion.rs
index 214c04582f..e175ed49fe 100644
--- a/crates/ty_server/src/server/api/requests/completion.rs
+++ b/crates/ty_server/src/server/api/requests/completion.rs
@@ -71,6 +71,7 @@ impl BackgroundDocumentRequestHandler for CompletionRequestHandler {
                     label: comp.inner.name.into(),
                     kind,
                     sort_text: Some(format!("{i:-max_index_len$}")),
+                    detail: comp.inner.ty.display(db).to_string().into(),
                     documentation: comp
                         .documentation
                         .map(|docstring| Documentation::String(docstring.render_plaintext())),
diff --git a/crates/ty_wasm/src/lib.rs b/crates/ty_wasm/src/lib.rs
index f835ea9112..413699866a 100644
--- a/crates/ty_wasm/src/lib.rs
+++ b/crates/ty_wasm/src/lib.rs
@@ -425,6 +425,7 @@ impl Workspace {
                 documentation: completion
                     .documentation
                     .map(|documentation| documentation.render_plaintext()),
+                detail: completion.inner.ty.display(&self.db).to_string().into(),
             })
             .collect())
     }
@@ -914,6 +915,8 @@ pub struct Completion {
     pub kind: Option<CompletionKind>,
     #[wasm_bindgen(getter_with_clone)]
     pub documentation: Option<String>,
+    #[wasm_bindgen(getter_with_clone)]
+    pub detail: Option<String>,
 }
 
 #[wasm_bindgen]
diff --git a/playground/ty/src/Editor/Editor.tsx b/playground/ty/src/Editor/Editor.tsx
index 5abcba0705..75bcf9d119 100644
--- a/playground/ty/src/Editor/Editor.tsx
+++ b/playground/ty/src/Editor/Editor.tsx
@@ -321,6 +321,7 @@ class PlaygroundServer
             : mapCompletionKind(completion.kind),
         insertText: completion.name,
         documentation: completion.documentation,
+        detail: completion.detail,
         // TODO(micha): It's unclear why this field is required for monaco but not VS Code.
         //  and omitting it works just fine? The LSP doesn't expose this information right now
         //  which is why we go with undefined for now.