diff --git a/doc/src/errors.rst b/doc/src/errors.rst
index b4f86f5f..0a1430a4 100644
--- a/doc/src/errors.rst
+++ b/doc/src/errors.rst
@@ -66,7 +66,7 @@ idiomatic error handler:
 
 
 SQLSTATE exception classes
-==========================
+--------------------------
 
 The following table contains the list of all the SQLSTATE classes exposed by
 the module.