diff --git a/mod/wiki/ewiki/ewiki.php b/mod/wiki/ewiki/ewiki.php
index 87b59aa6bb0..5c3170833e2 100644
--- a/mod/wiki/ewiki/ewiki.php
+++ b/mod/wiki/ewiki/ewiki.php
@@ -3164,7 +3164,10 @@ function ewiki_eventually_initialize(&$id, &$data, &$action) {
       if (!empty($path)) {
         if ($dh = @opendir($path=EWIKI_INIT_PAGES)) {
          while ($filename = readdir($dh)) {
-            if (preg_match('/^(['.EWIKI_CHARS_U.']+['.EWIKI_CHARS_L.']+\w*)+/', $filename)) {
+#### MOODLE CHANGE TO SOLVE BUG #3830. Original doesn't support dots in names.
+    //Orig->if (preg_match('/^(['.EWIKI_CHARS_U.']+['.EWIKI_CHARS_L.']+\w*)+/', $filename)) {
+            if ($filename == clean_filename($filename) && !is_dir($path.'/'.$filename)) {
+#### END OF MOODLE CHANGE TO SOLVE BUG #3830. Original doesn't support dots in names.
                $found = ewiki_database("FIND", array($filename));
                if (! $found[$filename]) {
                   $content = implode("", file("$path/$filename"));