1 files changed, 1 insertions, 1 deletions

diff --git a/docs/dev/lsp-extensions.md b/docs/dev/lsp-extensions.md
index e4b9fb2c2..48147b173 100644
--- a/docs/dev/lsp-extensions.md
+++ b/docs/dev/lsp-extensions.md
@@ -318,7 +318,7 @@ Primarily for debugging, but very useful for all people working on rust-analyzer
 ```typescript
 interface ExpandMacroParams {
     textDocument: TextDocumentIdentifier,
-    position?: Position,
+    position: Position,
 }
 ```