Typo: "ThreadError" is the name in the C source.
diff --git a/Doc/library/thread.rst b/Doc/library/thread.rst
index f21c35b..3bcc755 100644
--- a/Doc/library/thread.rst
+++ b/Doc/library/thread.rst
@@ -99,7 +99,7 @@
*size* argument specifies the stack size to be used for subsequently created
threads, and must be 0 (use platform or configured default) or a positive
integer value of at least 32,768 (32kB). If changing the thread stack size is
- unsupported, a :exc:`ThreadError` is raised. If the specified stack size is
+ unsupported, the :exc:`error` exception is raised. If the specified stack size is
invalid, a :exc:`ValueError` is raised and the stack size is unmodified. 32kB
is currently the minimum supported stack size value to guarantee sufficient
stack space for the interpreter itself. Note that some platforms may have