diff --git a/validation/sequence_provider.rst b/validation/sequence_provider.rst
index 8648259c03d..82fe339168e 100644
--- a/validation/sequence_provider.rst
+++ b/validation/sequence_provider.rst
@@ -139,6 +139,13 @@ that group are valid, the second group, ``Strict``, will be validated.
     infinite recursion (as the ``Default`` group references the group
     sequence, which will contain the ``Default`` group which references the
     same group sequence, ...).
+    
+.. caution::
+    
+    Calling ``validate()`` with a group in the sequence (``Strict`` in previous example)
+    will cause a validation **only** with that group and not with all the groups in the 
+    sequence.
+    This is because sequence is now referred to ``Default`` group validation.
 
 You can also define a group sequence in the ``validation_groups`` form option::