diff --git a/salt/common/tools/sbin/so-log-check b/salt/common/tools/sbin/so-log-check
index 97a7b30b5..07d5d2d5b 100755
--- a/salt/common/tools/sbin/so-log-check
+++ b/salt/common/tools/sbin/so-log-check
@@ -228,6 +228,7 @@ if [[ $EXCLUDE_KNOWN_ERRORS == 'Y' ]]; then
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|marked for removal"           # docker container getting recycled
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|tcp 127.0.0.1:6791: bind: address already in use" # so-elastic-fleet agent restarting. Seen starting w/ 8.18.8 https://github.com/elastic/kibana/issues/201459
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|TransformTask\] \[logs-(tychon|aws_billing|microsoft_defender_endpoint).*user so_kibana lacks the required permissions \[logs-\1" # Known issue with 3 integrations using kibana_system role vs creating unique api creds with proper permissions.
+    EXCLUDED_ERRORS="$EXCLUDED_ERRORS|manifest unknown"             # appears in so-dockerregistry log for so-tcpreplay following docker upgrade to 29.2.1-1
 fi
 
 RESULT=0