diff --git a/tools/gn/bootstrap/bootstrap.py b/tools/gn/bootstrap/bootstrap.py
index 2bf25e5..8096364 100755
--- a/tools/gn/bootstrap/bootstrap.py
+++ b/tools/gn/bootstrap/bootstrap.py
@@ -486,6 +486,7 @@
       'base/message_loop/message_pump.cc',
       'base/message_loop/message_pump_default.cc',
       'base/metrics/bucket_ranges.cc',
+      'base/metrics/dummy_histogram.cc',
       'base/metrics/field_trial.cc',
       'base/metrics/field_trial_param_associator.cc',
       'base/metrics/field_trial_params.cc',