diff --git a/clang-tools-extra/clangd/CodeComplete.h b/clang-tools-extra/clangd/CodeComplete.h
--- a/clang-tools-extra/clangd/CodeComplete.h
+++ b/clang-tools-extra/clangd/CodeComplete.h
@@ -86,7 +86,7 @@
   /// A visual indicator to prepend to the completion label to indicate whether
   /// completion result would trigger an #include insertion or not.
   struct IncludeInsertionIndicator {
-    std::string Insert = "•";
+    std::string Insert = u8"\u2022"; // Unicode Bullet.
     std::string NoInsert = " ";
   } IncludeIndicator;
 
diff --git a/clang-tools-extra/clangd/Diagnostics.cpp b/clang-tools-extra/clangd/Diagnostics.cpp
--- a/clang-tools-extra/clangd/Diagnostics.cpp
+++ b/clang-tools-extra/clangd/Diagnostics.cpp
@@ -545,7 +545,7 @@
 
   OS << R;
   if (R.size() != Code.size())
-    OS << "…";
+    OS << u8"\u2026"; // Unicode Horizontal Ellipsis.
 }
 
 /// Fills \p D with all information, except the location-related bits.