diff --git a/docs/source/configuration.rst b/docs/source/configuration.rst
index e328a942..094e3518 100644
--- a/docs/source/configuration.rst
+++ b/docs/source/configuration.rst
@@ -183,7 +183,6 @@ API
     .. autoattribute:: real_axes
     .. autoattribute:: reciprocal_axes
     .. autoattribute:: samples
-    .. autoattribute:: samples
     .. autoattribute:: name
     .. autoattribute:: datetime
     .. autoattribute:: wavelength_angstrom