diff --git a/crates/lsp/src/lsp.rs b/crates/lsp/src/lsp.rs
index 3f45d2e6fc..a92787cd3e 100644
--- a/crates/lsp/src/lsp.rs
+++ b/crates/lsp/src/lsp.rs
@@ -747,6 +747,10 @@ impl LanguageServer {
                                     InsertTextMode::ADJUST_INDENTATION,
                                 ],
                             }),
+                            documentation_format: Some(vec![
+                                MarkupKind::Markdown,
+                                MarkupKind::PlainText,
+                            ]),
                             ..Default::default()
                         }),
                         insert_text_mode: Some(InsertTextMode::ADJUST_INDENTATION),