diff --git a/source/c15/p01_access_ccode_using_ctypes.rst b/source/c15/p01_access_ccode_using_ctypes.rst
index 6b425972..4e3005af 100644
--- a/source/c15/p01_access_ccode_using_ctypes.rst
+++ b/source/c15/p01_access_ccode_using_ctypes.rst
@@ -255,7 +255,7 @@
     >>> a = array.array('d',[1,2,3])
     >>> a
     array('d', [1.0, 2.0, 3.0])
-    >>> ptr_ = a.buffer_info()
+    >>> ptr, _ = a.buffer_info()
     >>> ptr
     4298687200
     >>> ctypes.cast(ptr, ctypes.POINTER(ctypes.c_double))