diff -r 1f096611baf4 Doc/c-api/complex.rst
--- a/Doc/c-api/complex.rst	Sun Dec 18 01:26:05 2011 +0100
+++ b/Doc/c-api/complex.rst	Sun Dec 18 02:10:12 2011 +0100
@@ -72,7 +72,7 @@
    Return the exponentiation of *num* by *exp*, using the C :c:type:`Py_complex`
    representation.
 
-   If :attr:`exp.imag` is not null, or :attr:`exp.real` is negative,
+   If *num* is null and *exp* is not a strictly positive real value,
    this method returns zero and sets :c:data:`errno` to :c:data:`EDOM`.