diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -719,9 +719,9 @@ number, :class:`float`, or :class:`complex`::
        hash_ = hash_float(z.real) + sys.hash_info.imag * hash_float(z.imag)
        # do a signed reduction modulo 2**sys.hash_info.width
        M = 2**(sys.hash_info.width - 1)
-       hash_ = (hash_ & (M - 1)) - (hash & M)
+       hash_ = (hash_ & (M - 1)) - (hash_ & M)
        if hash_ == -1:
-           hash_ == -2
+           hash_ = -2
        return hash_
 
 .. _typeiter: