diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index f4cf2c994a6..6252811fff2 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -3727,11 +3727,11 @@ class Product extends CommonObject
     						if (empty($maxHeight) || $photo_vignette && $imgarray['height'] > $maxHeight)
     						{
     							$return.= '<!-- Show thumb -->';
-    							$return.= '<img class="photo photowithmargin" border="0" '.($conf->dol_use_jmobile?'max-height':'height').'="'.$maxHeight.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=product&entity='.$this->entity.'&file='.urlencode($pdirthumb.$photo_vignette).'" title="'.dol_escape_htmltag($alt).'">';
+    							$return.= '<img class="photo photowithmargin" border="0" height="'.$maxHeight.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=product&entity='.$this->entity.'&file='.urlencode($pdirthumb.$photo_vignette).'" title="'.dol_escape_htmltag($alt).'">';
     						}
     						else {
     							$return.= '<!-- Show original file -->';
-    							$return.= '<img class="photo photowithmargin" border="0" '.($conf->dol_use_jmobile?'max-height':'height').'="'.$maxHeight.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=product&entity='.$this->entity.'&file='.urlencode($pdir.$photo).'" title="'.dol_escape_htmltag($alt).'">';
+    							$return.= '<img class="photo photowithmargin" border="0" height="'.$maxHeight.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=product&entity='.$this->entity.'&file='.urlencode($pdir.$photo).'" title="'.dol_escape_htmltag($alt).'">';
     						}
 
     						if (empty($nolink)) $return.= '</a>';