diff --git a/crates/ra_ide_api/src/expand_macro.rs b/crates/ra_ide_api/src/expand_macro.rs
index 07a7c738a1..e9eb2a7fb8 100644
--- a/crates/ra_ide_api/src/expand_macro.rs
+++ b/crates/ra_ide_api/src/expand_macro.rs
@@ -1,4 +1,4 @@
-//! FIXME: write short doc here
+//! This modules implements "expand macro" functionality in the IDE
 
 use crate::{db::RootDatabase, FilePosition};
 use hir::db::AstDatabase;