diff --git a/mhkit/river/IO/delft_3d/delft_3d_get_all_time.m b/mhkit/river/IO/delft_3d/delft_3d_get_all_time.m
index 63c9533a..8353dc3f 100644
--- a/mhkit/river/IO/delft_3d/delft_3d_get_all_time.m
+++ b/mhkit/river/IO/delft_3d/delft_3d_get_all_time.m
@@ -23,7 +23,7 @@
 
     python_result = py.mhkit.river.io.d3d.get_all_time(delft_3d_py_object);
 
-    python_result = py.list(python_result);
+    python_result = py.numpy.ndarray(python_result);
 
 disp(python_result);
 disp(class(python_result));