diff --git a/pandora_console/include/functions_html.php b/pandora_console/include/functions_html.php
index 9bf4ae2be3..ef0a2309c7 100644
--- a/pandora_console/include/functions_html.php
+++ b/pandora_console/include/functions_html.php
@@ -1183,7 +1183,7 @@ function html_print_extended_select_for_cron($hour='*', $minute='*', $mday='*',
     }
 
     // Month days
-    for ($i = 0; $i < 31; $i++) {
+    for ($i = 1; $i <= 31; $i++) {
         $mdays[$i] = $i;
     }