diff --git a/src/test/java/net/hostsharing/hsadminng/hs/office/migration/ImportOfficeTables.java b/src/test/java/net/hostsharing/hsadminng/hs/office/migration/ImportOfficeTables.java
index 9c789a30..84d13415 100644
--- a/src/test/java/net/hostsharing/hsadminng/hs/office/migration/ImportOfficeTables.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/office/migration/ImportOfficeTables.java
@@ -322,7 +322,7 @@ public class ImportOfficeTables extends ContextBasedTest {
                     final var debitor = HsOfficeDebitorEntity.builder()
                             .partner(partner)
                             .debitorNumberSuffix((byte)0)
-                            .defaultPrefix(rec.getString("member_code"))
+                            .defaultPrefix(rec.getString("member_code").replace("hsh00-", ""))
                             .partner(partner)
                             .billingContact(partner.getContact())
                             .billable(rec.isEmpty("free"))