diff --git a/application/applicationextension.inc.php b/application/applicationextension.inc.php
index 531e86459..e70a7f514 100644
--- a/application/applicationextension.inc.php
+++ b/application/applicationextension.inc.php
@@ -431,7 +431,7 @@ interface iApplicationUIExtension
 	 *
 	 * @param DBObjectSet $oSet A set of persistent objects (DBObject)
 	 *
-	 * @return string[string]
+	 * @return array
 	 */
 	public function EnumAllowedActions(DBObjectSet $oSet);
 }
diff --git a/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxBars/BlockChartAjaxBars.php b/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxBars/BlockChartAjaxBars.php
index 6a07451b7..84422081c 100644
--- a/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxBars/BlockChartAjaxBars.php
+++ b/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxBars/BlockChartAjaxBars.php
@@ -19,7 +19,6 @@ class BlockChartAjaxBars extends UIBlock
 {
 	// Overloaded constants
 	public const BLOCK_CODE = 'ibo-blockchartajaxbars';
-	public const HTML_TEMPLATE_REL_PATH = 'specific/displayblock/blockchartajaxbars/layout';
 	public const JS_TEMPLATE_REL_PATH = 'specific/displayblock/blockchartajaxbars/layout';
 
 	use tBlockParams;
diff --git a/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxPie/BlockChartAjaxPie.php b/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxPie/BlockChartAjaxPie.php
index 9d23e3e9a..c42a246dc 100644
--- a/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxPie/BlockChartAjaxPie.php
+++ b/sources/application/UI/Specific/DisplayBlock/BlockChartAjaxPie/BlockChartAjaxPie.php
@@ -19,7 +19,6 @@ class BlockChartAjaxPie extends UIBlock
 {
 	// Overloaded constants
 	public const BLOCK_CODE = 'ibo-blockchartajaxpie';
-	public const HTML_TEMPLATE_REL_PATH = 'specific/displayblock/blockchartajaxpie/layout';
 	public const JS_TEMPLATE_REL_PATH = 'specific/displayblock/blockchartajaxpie/layout';
 
 	use tBlockParams;
diff --git a/templates/specific/displayblock/blockchartajaxbars/layout.html.twig b/templates/specific/displayblock/blockchartajaxbars/layout.html.twig
deleted file mode 100644
index 69b8087c9..000000000
--- a/templates/specific/displayblock/blockchartajaxbars/layout.html.twig
+++ /dev/null
@@ -1,5 +0,0 @@
-{# @copyright   Copyright (C) 2010-2020 Combodo SARL #}
-{# @license     http://opensource.org/licenses/AGPL-3.0 #}
-{% apply spaceless %}
-
-{% endapply %}
\ No newline at end of file
diff --git a/templates/specific/displayblock/blockchartajaxpie/layout.html.twig b/templates/specific/displayblock/blockchartajaxpie/layout.html.twig
deleted file mode 100644
index 69b8087c9..000000000
--- a/templates/specific/displayblock/blockchartajaxpie/layout.html.twig
+++ /dev/null
@@ -1,5 +0,0 @@
-{# @copyright   Copyright (C) 2010-2020 Combodo SARL #}
-{# @license     http://opensource.org/licenses/AGPL-3.0 #}
-{% apply spaceless %}
-
-{% endapply %}
\ No newline at end of file