diff --git a/src/scm/report/transaction-report.scm b/src/scm/report/transaction-report.scm
index 16cba32186..33c2a383df 100644
--- a/src/scm/report/transaction-report.scm
+++ b/src/scm/report/transaction-report.scm
@@ -30,6 +30,8 @@
 (gnc:depend  "report-html.scm")
 (gnc:depend  "date-utilities.scm")
 
+(use-modules (ice-9 syncase))
+
 ;; Define the strings here to avoid typos and make changes easier.
 
 (let-syntax ((addto!