diff --git a/tools/update_calling_codes.php b/tools/update_calling_codes.php
index 1707926..23a0adc 100644
--- a/tools/update_calling_codes.php
+++ b/tools/update_calling_codes.php
@@ -76,6 +76,10 @@ function mapCountry($c)
         return 'Vatican City';
     }
 
+    if ($c == 'Congo, Democratic Republic of the (Zaire)') {
+        return 'Democratic Republic of the Congo';
+    }
+
     return $c;
 }