diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index a14ddbde754..23c8d559e8a 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -2457,7 +2457,7 @@ function dol_print_socialnetworks($value, $cid, $socid, $type, $dictsocialnetwor
 
 	if (!empty($type)) {
 		$htmllink = '<div class="divsocialnetwork inline-block valignmiddle">';
-		$htmllink .= img_picto($langs->trans(strtoupper($type)), $type.'.png', '', false, 0, 0, '', 'paddingright', 0);
+		$htmllink .= img_picto($langs->trans(dol_ucfirst($type)), $type.'.png', '', false, 0, 0, '', 'paddingright', 0);
 		if ($type == 'skype') {
 			$htmllink .= $value;
 			$htmllink .= '&nbsp;';