Dont put "void" in signature for nullary functions.
diff --git a/Doc/c-api/float.rst b/Doc/c-api/float.rst
index f705297..c4099a3 100644
--- a/Doc/c-api/float.rst
+++ b/Doc/c-api/float.rst
@@ -72,21 +72,21 @@
.. versionadded:: 2.6
-.. cfunction:: double PyFloat_GetMax(void)
+.. cfunction:: double PyFloat_GetMax()
Return the maximum representable finite float *DBL_MAX* as C :ctype:`double`.
.. versionadded:: 2.6
-.. cfunction:: double PyFloat_GetMin(void)
+.. cfunction:: double PyFloat_GetMin()
Return the minimum normalized positive float *DBL_MIN* as C :ctype:`double`.
.. versionadded:: 2.6
-.. cfunction:: int PyFloat_ClearFreeList(void)
+.. cfunction:: int PyFloat_ClearFreeList()
Clear the float free list. Return the number of items that could not
be freed.