Move Error around
diff --git a/doc/api/crypto.rst b/doc/api/crypto.rst
index 8a31da5..ad4e025 100644
--- a/doc/api/crypto.rst
+++ b/doc/api/crypto.rst
@@ -11,10 +11,6 @@
 
     A class representing the X.509 store context.
 
-.. py:exception:: Error
-
-    Generic exception used in the :py:mod:`.crypto` module.
-
 Elliptic curves
 ---------------
 
@@ -299,6 +295,13 @@
 .. autoclass:: Revoked
                :members:
 
+Exceptions
+----------
+
+.. py:exception:: Error
+
+    Generic exception used in the :py:mod:`.crypto` module.
+
 Digest names
 ------------