diff --git a/crates/ide/src/lib.rs b/crates/ide/src/lib.rs
index 89e7bef7de8..68756f78a81 100644
--- a/crates/ide/src/lib.rs
+++ b/crates/ide/src/lib.rs
@@ -95,7 +95,7 @@ pub use ide_db::{
     },
     call_info::CallInfo,
     label::Label,
-    line_index::{LineCol, LineIndex},
+    line_index::{LineColUtf16, LineIndex},
     search::{ReferenceAccess, SearchScope},
     source_change::{FileSystemEdit, SourceChange},
     symbol_index::Query,
diff --git a/crates/ide_db/src/line_index.rs b/crates/ide_db/src/line_index.rs
index 41226305eaa..490c172e3e8 100644
--- a/crates/ide_db/src/line_index.rs
+++ b/crates/ide_db/src/line_index.rs
@@ -15,11 +15,11 @@ pub struct LineIndex {
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
-pub struct LineCol {
+pub struct LineColUtf16 {
     /// Zero-based
     pub line: u32,
     /// Zero-based
-    pub col_utf16: u32,
+    pub col: u32,
 }
 
 #[derive(Clone, Debug, Hash, PartialEq, Eq)]
@@ -88,17 +88,17 @@ impl LineIndex {
         LineIndex { newlines, utf16_lines }
     }
 
-    pub fn line_col(&self, offset: TextSize) -> LineCol {
+    pub fn line_col(&self, offset: TextSize) -> LineColUtf16 {
         let line = partition_point(&self.newlines, |&it| it <= offset) - 1;
         let line_start_offset = self.newlines[line];
         let col = offset - line_start_offset;
 
-        LineCol { line: line as u32, col_utf16: self.utf8_to_utf16_col(line as u32, col) as u32 }
+        LineColUtf16 { line: line as u32, col: self.utf8_to_utf16_col(line as u32, col) as u32 }
     }
 
-    pub fn offset(&self, line_col: LineCol) -> TextSize {
+    pub fn offset(&self, line_col: LineColUtf16) -> TextSize {
         //FIXME: return Result
-        let col = self.utf16_to_utf8_col(line_col.line, line_col.col_utf16);
+        let col = self.utf16_to_utf8_col(line_col.line, line_col.col);
         self.newlines[line_col.line as usize] + col
     }
 
diff --git a/crates/ide_db/src/line_index/tests.rs b/crates/ide_db/src/line_index/tests.rs
index 05f7484e8fe..1a109654e4c 100644
--- a/crates/ide_db/src/line_index/tests.rs
+++ b/crates/ide_db/src/line_index/tests.rs
@@ -4,23 +4,23 @@ use super::*;
 fn test_line_index() {
     let text = "hello\nworld";
     let index = LineIndex::new(text);
-    assert_eq!(index.line_col(0.into()), LineCol { line: 0, col_utf16: 0 });
-    assert_eq!(index.line_col(1.into()), LineCol { line: 0, col_utf16: 1 });
-    assert_eq!(index.line_col(5.into()), LineCol { line: 0, col_utf16: 5 });
-    assert_eq!(index.line_col(6.into()), LineCol { line: 1, col_utf16: 0 });
-    assert_eq!(index.line_col(7.into()), LineCol { line: 1, col_utf16: 1 });
-    assert_eq!(index.line_col(8.into()), LineCol { line: 1, col_utf16: 2 });
-    assert_eq!(index.line_col(10.into()), LineCol { line: 1, col_utf16: 4 });
-    assert_eq!(index.line_col(11.into()), LineCol { line: 1, col_utf16: 5 });
-    assert_eq!(index.line_col(12.into()), LineCol { line: 1, col_utf16: 6 });
+    assert_eq!(index.line_col(0.into()), LineColUtf16 { line: 0, col: 0 });
+    assert_eq!(index.line_col(1.into()), LineColUtf16 { line: 0, col: 1 });
+    assert_eq!(index.line_col(5.into()), LineColUtf16 { line: 0, col: 5 });
+    assert_eq!(index.line_col(6.into()), LineColUtf16 { line: 1, col: 0 });
+    assert_eq!(index.line_col(7.into()), LineColUtf16 { line: 1, col: 1 });
+    assert_eq!(index.line_col(8.into()), LineColUtf16 { line: 1, col: 2 });
+    assert_eq!(index.line_col(10.into()), LineColUtf16 { line: 1, col: 4 });
+    assert_eq!(index.line_col(11.into()), LineColUtf16 { line: 1, col: 5 });
+    assert_eq!(index.line_col(12.into()), LineColUtf16 { line: 1, col: 6 });
 
     let text = "\nhello\nworld";
     let index = LineIndex::new(text);
-    assert_eq!(index.line_col(0.into()), LineCol { line: 0, col_utf16: 0 });
-    assert_eq!(index.line_col(1.into()), LineCol { line: 1, col_utf16: 0 });
-    assert_eq!(index.line_col(2.into()), LineCol { line: 1, col_utf16: 1 });
-    assert_eq!(index.line_col(6.into()), LineCol { line: 1, col_utf16: 5 });
-    assert_eq!(index.line_col(7.into()), LineCol { line: 2, col_utf16: 0 });
+    assert_eq!(index.line_col(0.into()), LineColUtf16 { line: 0, col: 0 });
+    assert_eq!(index.line_col(1.into()), LineColUtf16 { line: 1, col: 0 });
+    assert_eq!(index.line_col(2.into()), LineColUtf16 { line: 1, col: 1 });
+    assert_eq!(index.line_col(6.into()), LineColUtf16 { line: 1, col: 5 });
+    assert_eq!(index.line_col(7.into()), LineColUtf16 { line: 2, col: 0 });
 }
 
 #[test]
diff --git a/crates/rust-analyzer/src/cli/analysis_bench.rs b/crates/rust-analyzer/src/cli/analysis_bench.rs
index 6735b6388cd..edf12faa4d6 100644
--- a/crates/rust-analyzer/src/cli/analysis_bench.rs
+++ b/crates/rust-analyzer/src/cli/analysis_bench.rs
@@ -5,7 +5,7 @@ use std::{env, path::PathBuf, str::FromStr, sync::Arc, time::Instant};
 use anyhow::{bail, format_err, Result};
 use hir::PrefixKind;
 use ide::{
-    Analysis, AnalysisHost, Change, CompletionConfig, DiagnosticsConfig, FilePosition, LineCol,
+    Analysis, AnalysisHost, Change, CompletionConfig, DiagnosticsConfig, FilePosition, LineColUtf16,
 };
 use ide_db::{
     base_db::{
@@ -97,7 +97,7 @@ impl BenchCmd {
                 let offset = host
                     .analysis()
                     .file_line_index(file_id)?
-                    .offset(LineCol { line: pos.line - 1, col_utf16: pos.column });
+                    .offset(LineColUtf16 { line: pos.line - 1, col: pos.column });
                 let file_position = FilePosition { file_id, offset };
 
                 if is_completion {
diff --git a/crates/rust-analyzer/src/cli/analysis_stats.rs b/crates/rust-analyzer/src/cli/analysis_stats.rs
index 3417af687d5..6d6f398f482 100644
--- a/crates/rust-analyzer/src/cli/analysis_stats.rs
+++ b/crates/rust-analyzer/src/cli/analysis_stats.rs
@@ -218,9 +218,9 @@ impl AnalysisStatsCmd {
                         bar.println(format!(
                             "{}:{}-{}:{}: {}",
                             start.line + 1,
-                            start.col_utf16,
+                            start.col,
                             end.line + 1,
-                            end.col_utf16,
+                            end.col,
                             ty.display(db)
                         ));
                     } else {
@@ -250,9 +250,9 @@ impl AnalysisStatsCmd {
                                 "{} {}:{}-{}:{}: Expected {}, got {}",
                                 path,
                                 start.line + 1,
-                                start.col_utf16,
+                                start.col,
                                 end.line + 1,
-                                end.col_utf16,
+                                end.col,
                                 mismatch.expected.display(db),
                                 mismatch.actual.display(db)
                             ));
diff --git a/crates/rust-analyzer/src/from_proto.rs b/crates/rust-analyzer/src/from_proto.rs
index 6676eebf401..82e7cfa8183 100644
--- a/crates/rust-analyzer/src/from_proto.rs
+++ b/crates/rust-analyzer/src/from_proto.rs
@@ -1,7 +1,7 @@
 //! Conversion lsp_types types to rust-analyzer specific ones.
 use std::convert::TryFrom;
 
-use ide::{Annotation, AnnotationKind, AssistKind, LineCol, LineIndex};
+use ide::{Annotation, AnnotationKind, AssistKind, LineColUtf16, LineIndex};
 use ide_db::base_db::{FileId, FilePosition, FileRange};
 use syntax::{TextRange, TextSize};
 use vfs::AbsPathBuf;
@@ -18,7 +18,7 @@ pub(crate) fn vfs_path(url: &lsp_types::Url) -> Result<vfs::VfsPath> {
 }
 
 pub(crate) fn offset(line_index: &LineIndex, position: lsp_types::Position) -> TextSize {
-    let line_col = LineCol { line: position.line as u32, col_utf16: position.character as u32 };
+    let line_col = LineColUtf16 { line: position.line as u32, col: position.character as u32 };
     line_index.offset(line_col)
 }
 
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 8a2b4d9bd99..599b5207c1e 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -22,7 +22,7 @@ use crate::{
 
 pub(crate) fn position(line_index: &LineIndex, offset: TextSize) -> lsp_types::Position {
     let line_col = line_index.line_col(offset);
-    lsp_types::Position::new(line_col.line, line_col.col_utf16)
+    lsp_types::Position::new(line_col.line, line_col.col)
 }
 
 pub(crate) fn range(line_index: &LineIndex, range: TextRange) -> lsp_types::Range {