diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst
index a6fd064..254d1ba 100644
--- a/Doc/reference/simple_stmts.rst
+++ b/Doc/reference/simple_stmts.rst
@@ -981,15 +981,16 @@
    exec_stmt: "exec" `or_expr` ["in" `expression` ["," `expression`]]
 
 This statement supports dynamic execution of Python code.  The first expression
-should evaluate to either a string, an open file object, a code object, or a
-tuple.  If it is a string, the string is parsed as a suite of Python statements
-which is then executed (unless a syntax error occurs). [#]_ If it is an open
-file, the file is parsed until EOF and executed.  If it is a code object, it is
-simply executed.  For the interpretation of a tuple, see below.  In all cases,
-the code that's executed is expected to be valid as file input (see section
-:ref:`file-input`).  Be aware that the :keyword:`return` and :keyword:`yield`
-statements may not be used outside of function definitions even within the
-context of code passed to the :keyword:`exec` statement.
+should evaluate to either a Unicode string, a *Latin-1* encoded string, an open
+file object, a code object, or a tuple.  If it is a string, the string is parsed
+as a suite of Python statements which is then executed (unless a syntax error
+occurs). [#]_ If it is an open file, the file is parsed until EOF and executed.
+If it is a code object, it is simply executed.  For the interpretation of a
+tuple, see below.  In all cases, the code that's executed is expected to be
+valid as file input (see section :ref:`file-input`).  Be aware that the
+:keyword:`return` and :keyword:`yield` statements may not be used outside of
+function definitions even within the context of code passed to the
+:keyword:`exec` statement.
 
 In all cases, if the optional parts are omitted, the code is executed in the
 current scope.  If only the first expression after ``in`` is specified,