diff --git a/felt/core/layer_exporter.py b/felt/core/layer_exporter.py
index bdd0f82..5274649 100644
--- a/felt/core/layer_exporter.py
+++ b/felt/core/layer_exporter.py
@@ -370,21 +370,18 @@ def export_vector_layer(
         writer_options.attributes = fields.allAttributesList()
         if fid_index >= 0:
             fid_type = fields.field(fid_index).type()
-            if (Qgis.QGIS_VERSION_INT < 32400 and
-                    fid_type not in (
-                            QVariant.Int,
-                            QVariant.UInt,
-                            QVariant.LongLong,
-                            QVariant.ULongLong)):
+            needs_rewrite = force_rewrite_fid or fid_type not in (
+                QVariant.Int,
+                QVariant.UInt,
+                QVariant.LongLong,
+                QVariant.ULongLong)
+            if Qgis.QGIS_VERSION_INT < 32400 and needs_rewrite:
                 # older QGIS, can't rename attributes during export, so
                 # drop FID
                 writer_options.attributes = [a for a in
                                              writer_options.attributes if
                                              a != fid_index]
-            elif force_rewrite_fid or fid_type not in (QVariant.Int,
-                                                       QVariant.UInt,
-                                                       QVariant.LongLong,
-                                                       QVariant.ULongLong):
+            elif needs_rewrite:
                 writer_options.attributesExportNames = [
                     f.name() if f.name().lower() != 'fid' else 'old_fid'
                     for f in fields]
@@ -399,7 +396,7 @@ def export_vector_layer(
             )
         # pylint: enable=unused-variable
 
-        if (Qgis.QGIS_VERSION_INT >= 32400 and not force_rewrite_fid and
+        if (not force_rewrite_fid and
                 res == QgsVectorFileWriter.WriterError.ErrFeatureWriteFailed):
             # could not write attributes -- possibly eg due to duplicate
             # FIDs. Let's try with renaming FID
diff --git a/felt/test/test_layer_exporter.py b/felt/test/test_layer_exporter.py
index ff609e5..6886d2a 100644
--- a/felt/test/test_layer_exporter.py
+++ b/felt/test/test_layer_exporter.py
@@ -223,8 +223,12 @@ def test_gml_conversion(self):
         self.assertTrue(out_layer.isValid())
         self.assertEqual(out_layer.featureCount(), layer.featureCount())
         self.assertEqual(out_layer.wkbType(), QgsWkbTypes.MultiPolygon)
-        self.assertEqual([f.name() for f in out_layer.fields()],
+        if Qgis.QGIS_VERSION_INT >= 32400:
+            self.assertEqual([f.name() for f in out_layer.fields()],
                          ['fid', 'old_fid', 'name', 'intval', 'floatval'])
+        else:
+            self.assertEqual([f.name() for f in out_layer.fields()],
+                         ['fid', 'name', 'intval', 'floatval'])
 
     def test_layer_conversion_string_fid(self):
         """
@@ -262,12 +266,21 @@ def test_layer_conversion_string_fid(self):
         self.assertTrue(out_layer.isValid())
         self.assertEqual(out_layer.featureCount(), layer.featureCount())
         self.assertEqual(out_layer.wkbType(), QgsWkbTypes.Point)
-        self.assertEqual([f.name() for f in out_layer.fields()],
+        if Qgis.QGIS_VERSION_INT >= 32400:
+            self.assertEqual([f.name() for f in out_layer.fields()],
                          ['fid', 'old_fid', 'label'])
+        else:
+            self.assertEqual([f.name() for f in out_layer.fields()],
+                             ['fid', 'label'])
         features = list(out_layer.getFeatures())
-        self.assertEqual([feature.attributes() for feature in features],
-                         [[1, 'abc', 'def'],
-                          [2, '15', 'ghi']])
+        if Qgis.QGIS_VERSION_INT >= 32400:
+            self.assertEqual([feature.attributes() for feature in features],
+            [[1, 'abc', 'def'],
+            [2, '15', 'ghi']])
+        else:
+            self.assertEqual([feature.attributes() for feature in features],
+                     [[1, 'def'],
+                      [2, 'ghi']])
 
     def test_layer_conversion_duplicate_fid(self):
         """
@@ -305,11 +318,20 @@ def test_layer_conversion_duplicate_fid(self):
         self.assertTrue(out_layer.isValid())
         self.assertEqual(out_layer.featureCount(), layer.featureCount())
         self.assertEqual(out_layer.wkbType(), QgsWkbTypes.Point)
-        self.assertEqual([f.name() for f in out_layer.fields()],
+        if Qgis.QGIS_VERSION_INT >= 32400:
+            self.assertEqual([f.name() for f in out_layer.fields()],
                          ['fid', 'old_fid', 'label'])
+        else:
+            self.assertEqual([f.name() for f in out_layer.fields()],
+                         ['fid', 'label'])
+
         features = list(out_layer.getFeatures())
-        self.assertEqual([feature.attributes() for feature in features],
-                         [[1, 15, 'abc'], [2, 15, 'def']])
+        if Qgis.QGIS_VERSION_INT >= 32400:
+            self.assertEqual([feature.attributes() for feature in features],
+                             [[1, 15, 'abc'], [2, 15, 'def']])
+        else:
+            self.assertEqual([feature.attributes() for feature in features],
+                             [[1, 'abc'], [2, 'def']])
 
     def test_raster_conversion_raw(self):
         """