diff --git a/flattentool/schema.py b/flattentool/schema.py
index 81ecfa68..97e7c83e 100644
--- a/flattentool/schema.py
+++ b/flattentool/schema.py
@@ -147,7 +147,11 @@ def parse_schema_dict(self, parent_path, schema_dict, parent_id_fields=None, tit
                 elif 'array' in property_type_set:
                     flattened_key = parent_path.replace('/0/', '/')+property_name
                     self.flattened[flattened_key] = "array"
-                    type_set = get_property_type_set(property_schema_dict['items'])
+                    if isinstance(property_schema_dict['items'], list):
+                        # If we have a list under items, just use the first one
+                        type_set = get_property_type_set(property_schema_dict['items'][0])
+                    else:
+                        type_set = get_property_type_set(property_schema_dict['items'])
                     if 'string' in type_set or not type_set:
                         self.flattened[flattened_key] = "string_array"
                         yield property_name, title
diff --git a/flattentool/tests/test_schema_parser.py b/flattentool/tests/test_schema_parser.py
index da72707b..3abce057 100644
--- a/flattentool/tests/test_schema_parser.py
+++ b/flattentool/tests/test_schema_parser.py
@@ -282,6 +282,33 @@ def test_simple_array(type_):
     assert set(parser.main_sheet) == set(['Atest'])
 
 
+@pytest.mark.parametrize('type_', ['string', 'number'])
+def test_double_array(type_):
+    """
+    Make sure we handle an array under items, used for e.g. co-ordinates.
+
+    """
+    parser = SchemaParser(
+        root_schema_dict={
+            'properties': {
+                'Atest': {
+                    'type': 'array',
+                    'items': [
+                        {
+                            'type': type_
+                        },
+                        {
+                            'type': type_
+                        }
+                    ]
+                }
+            }
+        }
+    )
+    parser.parse()
+    assert set(parser.main_sheet) == set(['Atest'])
+
+
 @pytest.mark.parametrize('type_', ['string', 'number'])
 def test_nested_simple_array(type_):
     parser = SchemaParser(