diff --git a/gnucash/import-export/aqb/gnc-ab-utils.c b/gnucash/import-export/aqb/gnc-ab-utils.c
index 02a1ba7451..b2dbd10575 100644
--- a/gnucash/import-export/aqb/gnc-ab-utils.c
+++ b/gnucash/import-export/aqb/gnc-ab-utils.c
@@ -159,13 +159,16 @@ gnc_AB_BANKING_new(void)
         api = AB_Banking_new("gnucash", NULL, 0);
         g_return_val_if_fail(api, NULL);
 
-#if AQBANKING_VERSION_INT >= 59925
+#if AQBANKING_VERSION_INT >= 59925 \
+    || (AQBANKING_VERSION_INT == 59924 && AQBANKING_VERSION_BUILD >= 1) \
+    || (AQBANKING_VERSION_INT >= 50709 && AQBANKING_VERSION_INT < 59900) \
+    || (AQBANKING_VERSION_INT == 50708 && AQBANKING_VERSION_BUILD >= 1)
         /* These two values must be set because newest bank regulation requires
         the bank servers to require it. The string itself results from our
         registration with the German bank association at
         https://www.hbci-zka.de/register/prod_register.htm (where the
         registration was requested and is managed by cstim). The function call was
-        introduced in aqbanking-5.99.25. */
+        introduced in aqbanking-5.99.25 and aqbanking-5.7.9. */
         AB_Banking_RuntimeConfig_SetCharValue(api, "fintsRegistrationKey", "412748A1836CDD07181CE1910");
         AB_Banking_RuntimeConfig_SetCharValue(api, "fintsApplicationVersionString", PACKAGE_VERSION);
 #endif