diff --git a/lib/Doctrine/Connection/Sqlite.php b/lib/Doctrine/Connection/Sqlite.php
index f392d53ed..2e81479bb 100644
--- a/lib/Doctrine/Connection/Sqlite.php
+++ b/lib/Doctrine/Connection/Sqlite.php
@@ -88,11 +88,6 @@ class Doctrine_Connection_Sqlite extends Doctrine_Connection_Common
         $this->dbh->sqliteCreateFunction('mod',    array('Doctrine_Expression_Sqlite', 'modImpl'), 2);
         $this->dbh->sqliteCreateFunction('concat', array('Doctrine_Expression_Sqlite', 'concatImpl'));
         $this->dbh->sqliteCreateFunction('md5', 'md5', 1);
-        $this->dbh->sqliteCreateFunction('sha1', 'sha1', 1);
-        $this->dbh->sqliteCreateFunction('locate', 'strpos', 2);
-        $this->dbh->sqliteCreateFunction('rtrim', 'rtrim', 1);
-        $this->dbh->sqliteCreateFunction('ltrim', 'ltrim', 1);
-        $this->dbh->sqliteCreateFunction('trim', 'trim', 1);
         $this->dbh->sqliteCreateFunction('now', 'time', 0);
     }
     /**
diff --git a/tests/UnitTestCase.php b/tests/UnitTestCase.php
index 0f109759c..6d5777f9b 100644
--- a/tests/UnitTestCase.php
+++ b/tests/UnitTestCase.php
@@ -132,6 +132,7 @@ class Doctrine_UnitTestCase extends UnitTestCase
         } catch(Doctrine_Manager_Exception $e) {
             if($this->driverName == 'main') {
                 $this->dbh = new PDO('sqlite::memory:');
+                $this->dbh->sqliteCreateFunction('trim', 'trim', 1);
             } else {
                 $this->dbh = $this->adapter = new Doctrine_Adapter_Mock($this->driverName);
             }