diff --git a/htdocs/accountancy/customer/list.php b/htdocs/accountancy/customer/list.php
index c07f4854b84..908079356a3 100644
--- a/htdocs/accountancy/customer/list.php
+++ b/htdocs/accountancy/customer/list.php
@@ -661,11 +661,11 @@ if ($result) {
 		print '</td>';
 
 		// Vat rate
-		$code_vat_differ='';
-		if ($product_static->tva_tx !== $facture_static_det->tva_tx && ! empty($facture_static_det->tva_tx)) {	// Note: having a vat rate of 0 is often the normal case when sells is intra b2b or to export
-			$code_vat_differ = 'font-weight:bold; text-decoration:blink; color:red';
+		$code_vat_differ = '';
+		if ($product_static->tva_tx !== $facture_static_det->tva_tx && !empty($product_static->tva_tx) && !empty($facture_static_det->tva_tx)) {	// Note: having a vat rate of 0 is often the normal case when sells is intra b2b or to export
+			$code_vat_differ = 'warning bold';
 		}
-		print '<td style="'.$code_vat_differ.'" class="right">';
+		print '<td class="right'.($code_vat_differ?' '.$code_vat_differ:'').'">';
 		print vatrate($facture_static_det->tva_tx.($facture_static_det->vat_src_code ? ' ('.$facture_static_det->vat_src_code.')' : ''));
 		print '</td>';
 
diff --git a/htdocs/accountancy/supplier/list.php b/htdocs/accountancy/supplier/list.php
index b7e914c381a..7ed451d1951 100644
--- a/htdocs/accountancy/supplier/list.php
+++ b/htdocs/accountancy/supplier/list.php
@@ -654,11 +654,11 @@ if ($result) {
 		print '</td>';
 
 		// Vat rate
-		$code_vat_differ='';
-		if ($objp->vat_tx_l != $objp->vat_tx_p && ! empty($objp->vat_tx_l)) {	// Note: having a vat rate of 0 is often the normal case when sells is intra b2b or to export
-			$code_vat_differ = 'font-weight:bold; text-decoration:blink; color:red';
+		$code_vat_differ = '';
+		if ($objp->vat_tx_l != $objp->vat_tx_p && !empty($objp->vat_tx_p) && !empty($objp->vat_tx_l)) {	// Note: having a vat rate of 0 is often the normal case when sells is intra b2b or to export
+			$code_vat_differ = 'warning bold';
 		}
-		print '<td style="'.$code_vat_differ.'" class="right">';
+		print '<td class="right'.($code_vat_differ?' '.$code_vat_differ:'').'">';
 		print vatrate($facturefourn_static_det->tva_tx.($facturefourn_static_det->vat_src_code ? ' ('.$facturefourn_static_det->vat_src_code.')' : ''));
 		print '</td>';