diff --git a/common/constants.cc b/common/constants.cc
index 87bdf91..64bdf0c 100644
--- a/common/constants.cc
+++ b/common/constants.cc
@@ -55,6 +55,7 @@
 const char kPrefsOmahaCohort[] = "omaha-cohort";
 const char kPrefsOmahaCohortHint[] = "omaha-cohort-hint";
 const char kPrefsOmahaCohortName[] = "omaha-cohort-name";
+const char kPrefsOmahaEolDate[] = "omaha-eol-date";
 const char kPrefsOmahaEolStatus[] = "omaha-eol-status";
 const char kPrefsP2PEnabled[] = "p2p-enabled";
 const char kPrefsP2PFirstAttemptTimestamp[] = "p2p-first-attempt-timestamp";