diff --git a/ieducar/modules/ComponenteCurricular/Model/AnoEscolarDataMapper.php b/ieducar/modules/ComponenteCurricular/Model/AnoEscolarDataMapper.php
index fb9ae8f..ed7c04b 100644
--- a/ieducar/modules/ComponenteCurricular/Model/AnoEscolarDataMapper.php
+++ b/ieducar/modules/ComponenteCurricular/Model/AnoEscolarDataMapper.php
@@ -98,7 +98,7 @@ class ComponenteCurricular_Model_AnoEscolarDataMapper extends CoreExt_DataMapper
   {
     $sql = "
 SELECT
-  mca.%s
+  DISTINCT(mca.%s)
 FROM
   %s mca, pmieducar.serie ps
 WHERE
--
libgit2 0.21.2