diff --git a/MemoryDatasource.md b/MemoryDatasource.md
index 883a184..5b1e795 100644
--- a/MemoryDatasource.md
+++ b/MemoryDatasource.md
@@ -9,7 +9,9 @@
 A in-memory datasource. Sample usage:
 
 ```python    
-    from mapnik2 import Feature, MemoryDatasource, Geometry2d
-    ds = MemoryDatasource()
-    ds.add_feature(Feature(1, Geometry2d.from_wkt("POINT(2 5)"), name="Alberto"))
+    import mapnik
+    ds = mapnik.MemoryDatasource()
+    f = mapnik.Feature(mapnik.Context(), 1)
+    f.add_geometries_from_wkt("POINT(2 5)")
+    ds.add_feature(f)
 ```
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