diff --git a/scripts/ZoneMinder/lib/ZoneMinder/Memory.pm.in b/scripts/ZoneMinder/lib/ZoneMinder/Memory.pm.in
index e7fdcd35f..3b085fdc1 100644
--- a/scripts/ZoneMinder/lib/ZoneMinder/Memory.pm.in
+++ b/scripts/ZoneMinder/lib/ZoneMinder/Memory.pm.in
@@ -169,6 +169,7 @@ our $mem_data = {
     zmc_heartbeat_time  => { type=>'time_t64', seq=>$mem_seq++ },
     last_write_time  => { type=>'time_t64', seq=>$mem_seq++ },
     last_read_time   => { type=>'time_t64', seq=>$mem_seq++ },
+    last_viewed_time => { type=>'time_t64', seq=>$mem_seq++ },
     control_state    => { type=>'uint8[256]', seq=>$mem_seq++ },
     alarm_cause      => { type=>'int8[256]', seq=>$mem_seq++ },
     video_fifo       => { type=>'int8[64]', seq=>$mem_seq++ },