diff --git a/common/constants.h b/common/constants.h
index 1057a65..61e5ddd 100644
--- a/common/constants.h
+++ b/common/constants.h
@@ -41,6 +41,7 @@
 extern const char kPrefsCurrentUrlIndex[];
 extern const char kPrefsDailyMetricsLastReportedAt[];
 extern const char kPrefsDeltaUpdateFailures[];
+extern const char kPrefsDynamicPartitionMetadataInitialized[];
 extern const char kPrefsFullPayloadAttemptNumber[];
 extern const char kPrefsInstallDateDays[];
 extern const char kPrefsLastActivePingDay[];