diff --git a/htdocs/accountancy/admin/accountmodel.php b/htdocs/accountancy/admin/accountmodel.php
index c50bb495c09..efa23a6a586 100644
--- a/htdocs/accountancy/admin/accountmodel.php
+++ b/htdocs/accountancy/admin/accountmodel.php
@@ -139,13 +139,13 @@ $sourceList=array();
  * Actions
  */
 
-if (GETPOST('button_removefilter') || GETPOST('button_removefilter.x') || GETPOST('button_removefilter_x'))
+if (GETPOST('button_removefilter','alpha') || GETPOST('button_removefilter.x','alpha') || GETPOST('button_removefilter_x','alpha'))
 {
 	$search_country_id = '';
 }
 
 // Actions add or modify an entry into a dictionary
-if (GETPOST('actionadd') || GETPOST('actionmodify'))
+if (GETPOST('actionadd','alpha') || GETPOST('actionmodify','alpha'))
 {
 	$listfield=explode(',', str_replace(' ', '',$tabfield[$id]));
 	$listfieldinsert=explode(',',$tabfieldinsert[$id]);
@@ -235,7 +235,7 @@ if (GETPOST('actionadd') || GETPOST('actionmodify'))
 	if ($_POST["accountancy_code_buy"] <= 0) $_POST["accountancy_code_buy"]='';	// If empty, we force to null
 
 	// Si verif ok et action add, on ajoute la ligne
-	if ($ok && GETPOST('actionadd'))
+	if ($ok && GETPOST('actionadd','alpha'))
 	{
 		if ($tabrowid[$id])
 		{
@@ -300,7 +300,7 @@ if (GETPOST('actionadd') || GETPOST('actionmodify'))
 	}
 
 	// Si verif ok et action modify, on modifie la ligne
-	if ($ok && GETPOST('actionmodify'))
+	if ($ok && GETPOST('actionmodify','alpha'))
 	{
 		if ($tabrowid[$id]) { $rowidcol=$tabrowid[$id]; }
 		else { $rowidcol="rowid"; }
@@ -341,7 +341,7 @@ if (GETPOST('actionadd') || GETPOST('actionmodify'))
 	//$_GET["id"]=GETPOST('id', 'int');       // Force affichage dictionnaire en cours d'edition
 }
 
-if (GETPOST('actioncancel'))
+if (GETPOST('actioncancel','alpha'))
 {
 	//$_GET["id"]=GETPOST('id', 'int');       // Force affichage dictionnaire en cours d'edition
 }
@@ -560,7 +560,7 @@ if ($id)
 
 		$obj = new stdClass();
 		// If data was already input, we define them in obj to populate input fields.
-		if (GETPOST('actionadd'))
+		if (GETPOST('actionadd','alpha'))
 		{
 			foreach ($fieldlist as $key=>$val)
 			{