diff --git a/html/inc/uotd.inc b/html/inc/uotd.inc
index d38f9d9fcd..932a4c5f9f 100644
--- a/html/inc/uotd.inc
+++ b/html/inc/uotd.inc
@@ -47,7 +47,7 @@ function show_uotd($profile) {
 // return the last UOTD profile, or null
 //
 function get_current_uotd() {
-    $profiles = BoincProfile::enum("uotd_time is not NULL", "ORDER BY uotd_time DESC LIMIT 1");
+    $profiles = BoincProfile::enum("uotd_time is not NULL and uotd_time>0", "ORDER BY uotd_time DESC LIMIT 1");
     if (sizeof($profiles)) {
         return $profiles[0];
     }
@@ -112,7 +112,7 @@ function select_uotd($force_new = false) {
         // If all verified profiles have been selected as UOTD,
         // reshow the one that was shown least recently.
         //
-        $result = $db->do_query("SELECT * FROM profile,user WHERE profile.userid=user.id AND verification=1 ORDER BY uotd_time ASC LIMIT 1");
+        $result = $db->do_query("SELECT * FROM profile,user WHERE profile.userid=user.id AND verification=1 AND uotd_time>0 ORDER BY uotd_time ASC LIMIT 1");
     }
 
     if (!$result || $result->num_rows == 0) {
@@ -164,7 +164,7 @@ function default_uotd_candidates_query(){
     $query = "SELECT * FROM profile,user WHERE profile.userid=user.id ";
     $query .= " AND verification=1 ";
     $query .= " AND expavg_credit>1 ";
-    $query .= " AND uotd_time IS NULL ";
+    $query .= " AND (uotd_time IS NULL or uotd_time=0) ";
     $query .= "ORDER BY RAND()";
     return $query;
 }
diff --git a/html/ops/profile_screen_form.php b/html/ops/profile_screen_form.php
index 8213d02c30..ff0cb6d50b 100644
--- a/html/ops/profile_screen_form.php
+++ b/html/ops/profile_screen_form.php
@@ -46,7 +46,7 @@ if (function_exists('profile_screen_query')) {
     $query = "select * from profile, user where profile.userid=user.id "
         ." and has_picture>0 "
         ." and verification=0 "
-        ." and uotd_time is null "
+        ." and (uotd_time is null or uotd_time=0) "
         ." and expavg_credit>1 "
         ." and (response1 <> '' or response2 <> '') "
         ." order by recommend desc limit 20"