| Index: pkg/analyzer_cli/lib/src/perf_report.dart
 | 
| diff --git a/pkg/analyzer_cli/lib/src/perf_report.dart b/pkg/analyzer_cli/lib/src/perf_report.dart
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| index 452b2ff300d52693dacb904a6a302740b8aca2b9..60acdf1cc3e738cedeb53e56cfcaa80be071437e 100644
 | 
| --- a/pkg/analyzer_cli/lib/src/perf_report.dart
 | 
| +++ b/pkg/analyzer_cli/lib/src/perf_report.dart
 | 
| @@ -66,7 +66,7 @@ String makePerfReport(int startTime, int endTime, CommandLineOptions options,
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|    // Convert performance tags to JSON representation.
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|    var perfTagsJson = <String, dynamic>{};
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|    for (PerformanceTag tag in PerformanceTag.all) {
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| -    if (tag != PerformanceTag.UNKNOWN) {
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| +    if (tag != PerformanceTag.unknown) {
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|        int tagTime = tag.elapsedMs;
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|        perfTagsJson[tag.label] = tagTime;
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|        otherTime -= tagTime;
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| 
 |