diff --git a/CRM/Core/Config/Variables.php b/CRM/Core/Config/Variables.php
index 7bf59da8afd3..f92f643c0857 100644
--- a/CRM/Core/Config/Variables.php
+++ b/CRM/Core/Config/Variables.php
@@ -544,7 +544,12 @@ public function countryLimit() {
       $country = array();
       if (is_array($this->countryLimit)) {
         foreach ($this->countryLimit as $val) {
-          $country[] = $countryIsoCodes[$val];
+          // CRM-12007
+          // some countries have disappeared and hence they might be in country limit
+          // but not in the country table
+          if (isset($countryIsoCodes[$val])) {
+            $country[] = $countryIsoCodes[$val];
+          }
         }
       }
       else {