diff --git a/crates/ra_ide/src/completion/complete_dot.rs b/crates/ra_ide/src/completion/complete_dot.rs
index ee4e24fcab..520652a373 100644
--- a/crates/ra_ide/src/completion/complete_dot.rs
+++ b/crates/ra_ide/src/completion/complete_dot.rs
@@ -1,6 +1,7 @@
-//! FIXME: write short doc here
+//! Completes references after dot (fields and method calls).
 
 use hir::{HasVisibility, Type};
+use rustc_hash::FxHashSet;
 
 use crate::{
     completion::{
@@ -9,7 +10,6 @@ use crate::{
     },
     CompletionItem,
 };
-use rustc_hash::FxHashSet;
 
 /// Complete dot accesses, i.e. fields or methods (and .await syntax).
 pub(super) fn complete_dot(acc: &mut Completions, ctx: &CompletionContext) {
diff --git a/crates/ra_ide/src/completion/presentation.rs b/crates/ra_ide/src/completion/presentation.rs
index ee810b59f3..bd48156b02 100644
--- a/crates/ra_ide/src/completion/presentation.rs
+++ b/crates/ra_ide/src/completion/presentation.rs
@@ -1,4 +1,5 @@
 //! This modules takes care of rendering various definitions as completion items.
+//! It also handles scoring (sorting) completions.
 
 use hir::{Docs, HasAttrs, HasSource, HirDisplay, ModPath, ScopeDef, StructKind, Type};
 use ra_syntax::ast::NameOwner;