1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs
index 1e18f0779f0..de9f5187be7 100644
--- a/compiler/rustc_ast_pretty/src/pprust/state.rs
+++ b/compiler/rustc_ast_pretty/src/pprust/state.rs
@@ -21,6 +21,7 @@ use rustc_ast::{
     GenericBound, InlineAsmOperand, InlineAsmOptions, InlineAsmRegOrRegClass,
     InlineAsmTemplatePiece, PatKind, RangeEnd, RangeSyntax, Safety, SelfKind, Term, attr,
 };
+use rustc_data_structures::sync::Lrc;
 use rustc_span::edition::Edition;
 use rustc_span::source_map::{SourceMap, Spanned};
 use rustc_span::symbol::{Ident, IdentPrinter, Symbol, kw, sym};
@@ -105,7 +106,7 @@ fn split_block_comment_into_lines(text: &str, col: CharPos) -> Vec<String> {
 fn gather_comments(sm: &SourceMap, path: FileName, src: String) -> Vec<Comment> {
     let sm = SourceMap::new(sm.path_mapping().clone());
     let source_file = sm.new_source_file(path, src);
-    let text = (*source_file.src.as_ref().unwrap()).clone();
+    let text = Lrc::clone(&(*source_file.src.as_ref().unwrap()));
 
     let text: &str = text.as_str();
     let start_bpos = source_file.start_pos;