diff --git a/gnucash/report/reports/standard/lot-viewer.scm b/gnucash/report/reports/standard/lot-viewer.scm
index 71b84a704e..9e0ae7719d 100644
--- a/gnucash/report/reports/standard/lot-viewer.scm
+++ b/gnucash/report/reports/standard/lot-viewer.scm
@@ -27,6 +27,7 @@
 (use-modules (gnucash utilities))
 (use-modules (gnucash report))
 (use-modules (gnucash core-utils))           ;for gnc-prefs-is-extra-enabled
+(use-modules (gnucash app-utils))
 (use-modules (gnucash engine))