diff --git a/ortools/constraint_solver/constraint_solver.h b/ortools/constraint_solver/constraint_solver.h
index 56b9640f17..9807b00b4e 100644
--- a/ortools/constraint_solver/constraint_solver.h
+++ b/ortools/constraint_solver/constraint_solver.h
@@ -548,7 +548,7 @@ class Solver {
   /// This enum is used in Solver::MakeOperator associated with an evaluator
   /// to specify the neighborhood to create.
   enum EvaluatorLocalSearchOperators {
-    /// Lin–Kernighan local search.
+    /// Lin-Kernighan local search.
     /// While the accumulated local gain is positive, perform a 2opt or a 3opt
     /// move followed by a series of 2opt moves. Return a neighbor for which the
     /// global gain is positive.