diff --git a/rslib/ftl/sync.ftl b/rslib/ftl/sync.ftl
index 3fc0a4bfe..682e55a7d 100644
--- a/rslib/ftl/sync.ftl
+++ b/rslib/ftl/sync.ftl
@@ -38,6 +38,8 @@ sync-password-label = Password:
 sync-account-required =
     <h1>Account Required</h1>
     A free account is required to keep your collection synchronized. Please <a href="{ $link }">sign up</a> for an account, then enter your details below.
+sync-sanity-check-failed = Please use the Check Database function, then sync again. If problems persist, please force a full sync in the preferences screen.
+sync-clock-off = Unable to sync - your clock is not set to the correct time.
 
 ## Buttons
 
diff --git a/rslib/src/err.rs b/rslib/src/err.rs
index caee450c5..fe243278e 100644
--- a/rslib/src/err.rs
+++ b/rslib/src/err.rs
@@ -89,9 +89,8 @@ impl AnkiError {
                 SyncErrorKind::ClientTooOld => i18n.tr(TR::SyncClientTooOld),
                 SyncErrorKind::AuthFailed => i18n.tr(TR::SyncWrongPass),
                 SyncErrorKind::ResyncRequired => i18n.tr(TR::SyncResyncRequired),
-                // fixme: i18n
-                SyncErrorKind::ClockIncorrect => "Please check your clock.".into(),
-                SyncErrorKind::DatabaseCheckRequired => "Please check the database.".into(),
+                SyncErrorKind::ClockIncorrect => i18n.tr(TR::SyncClockOff),
+                SyncErrorKind::DatabaseCheckRequired => i18n.tr(TR::SyncSanityCheckFailed),
             }
             .into(),
             AnkiError::NetworkError { kind, info } => {