diff --git a/qfieldsync/core/offline_converter.py b/qfieldsync/core/offline_converter.py
index c78fa863..9a546ea0 100644
--- a/qfieldsync/core/offline_converter.py
+++ b/qfieldsync/core/offline_converter.py
@@ -130,7 +130,6 @@ def convert(self):
 
             # save the offline project twice so that the offline plugin can "know" that it's a relative path
             QgsProject.instance().write(project_path)
-
             try:
                 # Run the offline plugin for gpkg
                 gpkg_filename = "data.gpkg"
@@ -138,7 +137,7 @@ def convert(self):
                     offline_layer_ids = [l.id() for l in self.__offline_layers]
                     if not self.offline_editing.convertToOfflineProject(self.export_folder, gpkg_filename,
                                                                         offline_layer_ids,
-                                                                        self.project_configuration.offline_copy_only_aoi, 1):
+                                                                        self.project_configuration.offline_copy_only_aoi, self.offline_editing.GPKG):
                         raise Exception(self.tr("Error trying to convert layers to offline layers"))
             except AttributeError:
                 # Run the offline plugin for spatialite