diff --git a/src/harness/compilerRunner.ts b/src/harness/compilerRunner.ts
index e237b58785c..e08981142e0 100644
--- a/src/harness/compilerRunner.ts
+++ b/src/harness/compilerRunner.ts
@@ -119,7 +119,7 @@ class CompilerBaselineRunner extends RunnerBase {
             });
 
             function getByteOrderMarkText(file: Harness.Compiler.GeneratedFile): string {
-                return file.writeByteOrderMark ? String.fromCharCode(ts.CharacterCodes.byteOrderMark) : '';
+                return file.writeByteOrderMark ? "\u00EF\u00BB\u00BF" : "";
             }
 
             function getErrorBaseline(toBeCompiled: { unitName: string; content: string }[],
diff --git a/tests/baselines/reference/generateBOM.js b/tests/baselines/reference/generateBOM.js
index 468aafd7bcd..dec1ae55601 100644
--- a/tests/baselines/reference/generateBOM.js
+++ b/tests/baselines/reference/generateBOM.js
@@ -4,8 +4,8 @@
 var x;
 
 //// [generateBOM.js]
-var x;
+var x;
 //# sourceMappingURL=generateBOM.js.map
 
 //// [generateBOM.d.ts]
-declare var x: any;
+declare var x: any;