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-rw-r--r--compiler/rustc_parse/src/parser/diagnostics.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs
index 25beed1ecf9..9677e7642b8 100644
--- a/compiler/rustc_parse/src/parser/diagnostics.rs
+++ b/compiler/rustc_parse/src/parser/diagnostics.rs
@@ -2236,7 +2236,7 @@ impl<'a> Parser<'a> {
             err.span_suggestion(
                 seq_span,
                 "...or a vertical bar to match on multiple alternatives",
-                seq_snippet.replace(",", " |"),
+                seq_snippet.replace(',', " |"),
                 Applicability::MachineApplicable,
             );
         }