diff --git a/htdocs/install/check.php b/htdocs/install/check.php
index e7d14889d0d..aaf9eefe9ba 100644
--- a/htdocs/install/check.php
+++ b/htdocs/install/check.php
@@ -244,12 +244,12 @@ if (!class_exists('ZipArchive')) {
if (!empty($extensionok)) {
//print '
';
print img_picto('', 'tick', 'class="pictofixedwidth"');
- print $langs->trans("PHPSupport", implode(', ', $extensionok))."
\n";
+ print $langs->trans("PHPSupport", ''.implode(', ', $extensionok).'')."
\n";
}
if (!empty($extensionko)) {
//print '
';
print img_picto('', 'warning', 'class="pictofixedwidth error"');
- print $langs->trans("ErrorPHPDoesNotSupport", implode(', ', $extensionko))."
\n";
+ print $langs->trans("ErrorPHPDoesNotSupport", ''.implode(', ', $extensionko).'')."
\n";
}