diff --git a/Core/src/org/sleuthkit/autopsy/report/Bundle.properties b/Core/src/org/sleuthkit/autopsy/report/Bundle.properties
index 6701d22617..3468fc878a 100644
--- a/Core/src/org/sleuthkit/autopsy/report/Bundle.properties
+++ b/Core/src/org/sleuthkit/autopsy/report/Bundle.properties
@@ -195,6 +195,10 @@ ReportHTML.writeNav.h1=Report Navigation
 ReportHTML.writeNav.summary=Case Summary
 ReportHTML.writeSum.title=Case Summary
 ReportHTML.writeSum.warningMsg=<span>Warning, this report was run before ingest services completed\!</span>
+#
+# autopsy/test/scripts/regression.py._html_report_diff() uses reportGenOn.text, caseName, caseNum, 
+# examiner as a regex signature to skip index.html and summary.html
+#
 ReportHTML.writeSum.reportGenOn.text=HTML Report Generated on {0}
 ReportHTML.writeSum.caseName=Case\:
 ReportHTML.writeSum.caseNum=Case Number\: