diff --git a/tests/csvtest.sh b/tests/csvtest.sh
index 08169d1df..061aad78d 100755
--- a/tests/csvtest.sh
+++ b/tests/csvtest.sh
@@ -14,4 +14,4 @@ trap "rm -f t.$$.csv t.$$.csv.rules" EXIT ERR
 
 # Remove variable file name from error messages
 :; ( hledger -f csv:t.$$.csv --rules-file t.$$.csv.rules print "$@" ) \
-       2> >( sed -re "s/t.*.csv/input/" >&2 )
+       2> >( sed -Ee "s/t.*.csv/input/" >&2 )