diff --git a/htdocs/comm/propal/card.php b/htdocs/comm/propal/card.php
index 888e0ba3a6e..d273223d628 100644
--- a/htdocs/comm/propal/card.php
+++ b/htdocs/comm/propal/card.php
@@ -1931,7 +1931,7 @@ if (empty($reshook)) {
 			$res = $product->fetch($productid);
 
 			$type = $product->type;
-			$$price_base_type = $product->price_base_type;
+			$price_base_type = $product->price_base_type;
 			$label = ((GETPOST('update_label') && GETPOST('product_label')) ? GETPOST('product_label') : '');
 
 			$price_min = $product->price_min;