diff --git a/src/import-export/aqbanking/druid-ab-initial.c b/src/import-export/aqbanking/druid-ab-initial.c
index 91a6320937..802c9214ee 100644
--- a/src/import-export/aqbanking/druid-ab-initial.c
+++ b/src/import-export/aqbanking/druid-ab-initial.c
@@ -161,7 +161,11 @@ dai_destroy_cb(GtkObject *object, gpointer user_data)
     }
 
     if (info->gnc_hash) {
+#ifdef AQBANKING_VERSION_4_PLUS
+        AB_Banking_OnlineFini(info->api, 0);
+#else
         AB_Banking_OnlineFini(info->api);
+#endif
         g_hash_table_destroy(info->gnc_hash);
         info->gnc_hash = NULL;
     }
@@ -323,7 +327,11 @@ dai_match_page_prepare_cb(GnomeDruidPage *druid_page, GtkWidget *widget,
         info->match_page_prepared = TRUE;
 
     /* Load aqbanking accounts */
+#ifdef AQBANKING_VERSION_4_PLUS
+    AB_Banking_OnlineInit(info->api, 0);
+#else
     AB_Banking_OnlineInit(info->api);
+#endif
 
     /* Determine current mapping */
     root = gnc_book_get_root_account(gnc_get_current_book());
@@ -362,7 +370,11 @@ banking_has_accounts(AB_BANKING *banking)
 
     g_return_val_if_fail(banking, FALSE);
 
+#ifdef AQBANKING_VERSION_4_PLUS
+    AB_Banking_OnlineInit(banking, 0);
+#else
     AB_Banking_OnlineInit(banking);
+#endif
 
     accl = AB_Banking_GetAccounts(banking);
     if (accl && (AB_Account_List2_GetSize(accl) > 0))
@@ -373,7 +385,11 @@ banking_has_accounts(AB_BANKING *banking)
     if (accl)
         AB_Account_List2_free(accl);
 
+#ifdef AQBANKING_VERSION_4_PLUS
+    AB_Banking_OnlineFini(banking, 0);
+#else
     AB_Banking_OnlineFini(banking);
+#endif
 
     return result;
 }
diff --git a/src/import-export/aqbanking/gnc-ab-getbalance.c b/src/import-export/aqbanking/gnc-ab-getbalance.c
index a2d61e4ea2..1bfd57db1a 100644
--- a/src/import-export/aqbanking/gnc-ab-getbalance.c
+++ b/src/import-export/aqbanking/gnc-ab-getbalance.c
@@ -62,7 +62,11 @@ gnc_ab_getbalance(GtkWidget *parent, Account *gnc_acc)
         g_warning("gnc_ab_gettrans: Couldn't get AqBanking API");
         return;
     }
-    if (AB_Banking_OnlineInit(api) != 0) {
+    if (AB_Banking_OnlineInit(api
+#ifdef AQBANKING_VERSION_4_PLUS
+			      , 0
+#endif
+			      ) != 0) {
         g_warning("gnc_ab_gettrans: Couldn't initialize AqBanking API");
         goto cleanup;
     }
@@ -116,6 +120,10 @@ cleanup:
     if (job)
         AB_Job_free(job);
     if (online)
-        AB_Banking_OnlineFini(api);
+#ifdef AQBANKING_VERSION_4_PLUS
+	AB_Banking_OnlineFini(api, 0);
+#else
+	AB_Banking_OnlineFini(api);
+#endif
     gnc_AB_BANKING_fini(api);
 }
diff --git a/src/import-export/aqbanking/gnc-ab-gettrans.c b/src/import-export/aqbanking/gnc-ab-gettrans.c
index 0f0d7a6985..a339ec214b 100644
--- a/src/import-export/aqbanking/gnc-ab-gettrans.c
+++ b/src/import-export/aqbanking/gnc-ab-gettrans.c
@@ -119,7 +119,11 @@ gnc_ab_gettrans(GtkWidget *parent, Account *gnc_acc)
         g_warning("gnc_ab_gettrans: Couldn't get AqBanking API");
         return;
     }
-    if (AB_Banking_OnlineInit(api) != 0) {
+    if (AB_Banking_OnlineInit(api
+#ifdef AQBANKING_VERSION_4_PLUS
+			      , 0
+#endif
+			      ) != 0) {
         g_warning("gnc_ab_gettrans: Couldn't initialize AqBanking API");
         goto cleanup;
     }
@@ -204,6 +208,10 @@ cleanup:
     if (from_date)
         GWEN_Time_free(from_date);
     if (online)
-        AB_Banking_OnlineFini(api);
+#ifdef AQBANKING_VERSION_4_PLUS
+	AB_Banking_OnlineFini(api, 0);
+#else
+	AB_Banking_OnlineFini(api);
+#endif
     gnc_AB_BANKING_fini(api);
 }
diff --git a/src/import-export/aqbanking/gnc-ab-transfer.c b/src/import-export/aqbanking/gnc-ab-transfer.c
index a6a8a69247..b88ee08696 100644
--- a/src/import-export/aqbanking/gnc-ab-transfer.c
+++ b/src/import-export/aqbanking/gnc-ab-transfer.c
@@ -97,7 +97,11 @@ gnc_ab_maketrans(GtkWidget *parent, Account *gnc_acc,
         g_warning("gnc_ab_maketrans: Couldn't get AqBanking API");
         return;
     }
-    if (AB_Banking_OnlineInit(api) != 0) {
+    if (AB_Banking_OnlineInit(api
+#ifdef AQBANKING_VERSION_4_PLUS
+			      , 0
+#endif
+			      ) != 0) {
         g_warning("gnc_ab_maketrans: Couldn't initialize AqBanking API");
         goto cleanup;
     }
@@ -294,6 +298,10 @@ cleanup:
     if (td)
         gnc_ab_trans_dialog_free(td);
     if (online)
-        AB_Banking_OnlineFini(api);
+#ifdef AQBANKING_VERSION_4_PLUS
+	AB_Banking_OnlineFini(api, 0);
+#else
+	AB_Banking_OnlineFini(api);
+#endif
     gnc_AB_BANKING_fini(api);
 }
diff --git a/src/import-export/aqbanking/gnc-ab-utils.h b/src/import-export/aqbanking/gnc-ab-utils.h
index ada74097d3..8f7e0ad55e 100644
--- a/src/import-export/aqbanking/gnc-ab-utils.h
+++ b/src/import-export/aqbanking/gnc-ab-utils.h
@@ -41,6 +41,13 @@
 
 G_BEGIN_DECLS
 
+#if (AQBANKING_VERSION_MAJOR > 3) || \
+  ((AQBANKING_VERSION_MAJOR == 3) && \
+    (AQBANKING_VERSION_MINOR == 9))
+/** Defined if libaqbanking4 as opposed to libaqbanking3 is being used */
+# define AQBANKING_VERSION_4_PLUS
+#endif
+
 #define GCONF_SECTION_AQBANKING "dialogs/import/hbci"
 #define KEY_FORMAT_SWIFT940 "format_swift_mt940"
 #define KEY_FORMAT_SWIFT942 "format_swift_mt942"
diff --git a/src/import-export/aqbanking/gnc-file-aqb-import.c b/src/import-export/aqbanking/gnc-file-aqb-import.c
index 917554e631..14b81ae41c 100644
--- a/src/import-export/aqbanking/gnc-file-aqb-import.c
+++ b/src/import-export/aqbanking/gnc-file-aqb-import.c
@@ -100,7 +100,11 @@ gnc_file_aqbanking_import(const gchar *aqbanking_importername,
         g_warning("gnc_file_aqbanking_import: Couldn't get AqBanking API");
         goto cleanup;
     }
-    if (AB_Banking_OnlineInit(api) != 0) {
+    if (AB_Banking_OnlineInit(api
+#ifdef AQBANKING_VERSION_4_PLUS
+			      , 0
+#endif
+			      ) != 0) {
         g_warning("gnc_file_aqbanking_import: "
                   "Couldn't initialize AqBanking API");
         goto cleanup;
@@ -199,7 +203,11 @@ cleanup:
     if (gui)
         gnc_GWEN_Gui_release(gui);
     if (online)
+#ifdef AQBANKING_VERSION_4_PLUS
+        AB_Banking_OnlineFini(api, 0);
+#else
         AB_Banking_OnlineFini(api);
+#endif
     if (api)
         gnc_AB_BANKING_fini(api);
     if (dtaus_fd != -1)