diff --git a/src/harness/harness.ts b/src/harness/harness.ts
index 5c191a3b9d7..858607143d2 100644
--- a/src/harness/harness.ts
+++ b/src/harness/harness.ts
@@ -285,6 +285,10 @@ namespace Utils {
                         // data we don't care about in the dump.  We only care what the parser set directly
                         // on the ast.
                         let value = n.parserContextFlags & ts.ParserContextFlags.ParserGeneratedFlags;
+
+                        // Remove the JavaScriptFile flag, as this is just noise for JSDocParser and Test262 tests
+                        // (which are the only tests that use this function).
+                        value = value & ~ts.ParserContextFlags.JavaScriptFile;
                         if (value) {
                             o[propertyName] = getParserContextFlagName(value);
                         }
diff --git a/tests/cases/unittests/jsDocParsing.ts b/tests/cases/unittests/jsDocParsing.ts
index e2941f7fc19..9c68cea3297 100644
--- a/tests/cases/unittests/jsDocParsing.ts
+++ b/tests/cases/unittests/jsDocParsing.ts
@@ -12,8 +12,6 @@ module ts {
 
                 let result = Utils.sourceFileToJSON(typeAndDiagnostics.jsDocTypeExpression.type);
 
-                // Remove the parserContextFlags from the comparison
-                result = result.replace(/\,\n\s+\"parserContextFlags\": \"JavaScriptFile\"/g, "");
                 assert.equal(result, expected);
             }
 
@@ -1002,9 +1000,6 @@ module ts {
                         : v;
                 }, 4);
 
-                // Remove the parserContextFlags from the comparison
-                result = result.replace(/\,\n\s+\"parserContextFlags\": \"JavaScriptFile\"/g, "");
-
                 if (result !== expected) {
                     // Turn on a human-readable diff
                     if (typeof require !== 'undefined') {