diff --git a/contributing/contributing.rst b/contributing/contributing.rst
index ed47d7200..bfd6e4fe1 100644
--- a/contributing/contributing.rst
+++ b/contributing/contributing.rst
@@ -1,7 +1,7 @@
 Contribute to Akeneo PIM
 ========================
 
-We gladly welcome contributions on Akeneo PIM !
+We gladly welcome contributions on Akeneo PIM!
 
 You can get involved by:
 
@@ -55,7 +55,7 @@ Proposing a Technical Enhancement
 Creating a New Connector
 ------------------------
 
-We're happy to connect the PIM with any third-party system !
+We're happy to connect the PIM with any third-party system!
 
 * Begin by check on the forum that nobody is writing the same connector: http://www.akeneo.com/forum/importexport-connectors/
 * Create your connector :doc:`/cookbook/import_export/create-connector`
diff --git a/cookbook/custom_entity/index.rst b/cookbook/custom_entity/index.rst
index 620ad9362..b8729f8d4 100644
--- a/cookbook/custom_entity/index.rst
+++ b/cookbook/custom_entity/index.rst
@@ -1,5 +1,5 @@
 How to Create a Custom Entity and Use it as an attribute
-===============================================================
+========================================================
 
 Why Create a Custom Entity ?
 ----------------------------
diff --git a/cookbook/form_customization/add_a_new_tab_to_product_edit_form.rst b/cookbook/form_customization/add_a_new_tab_to_product_edit_form.rst
index 14b761086..313c01864 100644
--- a/cookbook/form_customization/add_a_new_tab_to_product_edit_form.rst
+++ b/cookbook/form_customization/add_a_new_tab_to_product_edit_form.rst
@@ -10,7 +10,7 @@ and tab panes (``PimCatalogBundle:Product:_tab-panes.html.twig``).
 In order to do this, you will need to define a bundle that is a child of ``PimCatalogBundle`` (`see here`_).
 
 Overriding the templates
-------------------------------
+------------------------
 To override these templates, you need to create 2 new files:
 
 - ``(AcmeCatalogBundle)/Resources/views/Product/_navbar.html.twig``
diff --git a/cookbook/import_export/create-connector.rst b/cookbook/import_export/create-connector.rst
index c63c090dc..12e1dea60 100644
--- a/cookbook/import_export/create-connector.rst
+++ b/cookbook/import_export/create-connector.rst
@@ -76,7 +76,7 @@ You can run the job from UI or you can use following command:
     php app/console oro:batch:job my_job_code
 
 Customize Elements: Reader, Processor and Writer
--------------------------------------------------
+------------------------------------------------
 
 The default used step is ``Oro\Bundle\BatchBundle\Step\ItemStep``.
 
diff --git a/references/basic/technical_entities.rst b/references/basic/technical_entities.rst
index a063f396b..3e105b4c4 100644
--- a/references/basic/technical_entities.rst
+++ b/references/basic/technical_entities.rst
@@ -21,7 +21,7 @@ The implementation is based on OroFlexibleEntityBundle an customized in PimCatal
 FYI, a document oriented storage is already planned to deal with high data volumes.
 
 Attribute
------------------
+---------
 
 An attribute defines the type and the properties of a value.