diff --git a/tests/RedirectorPageTest.php b/tests/RedirectorPageTest.php
index 3a7b5138c..7ff9e7d62 100644
--- a/tests/RedirectorPageTest.php
+++ b/tests/RedirectorPageTest.php
@@ -18,13 +18,13 @@ class RedirectorPageTest extends FunctionalTest {
 
 		/* An error message will be shown if you visit it */
 		$content = $this->get(Director::makeRelative($page1->Link()))->getBody();
-		$this->assertContains("A redirector page has been set up without anywhere to redirect to.", $content);
+		$this->assertContains(_t('RedirectorPage.HASBEENSETUP'), $content);
 
 		/* This also applies for internal links */
 		$page2 = $this->objFromFixture('RedirectorPage','badinternal');
 		$this->assertEquals(Director::baseURL() . 'bad-internal/', $page2->Link());
 		$content = $this->get(Director::makeRelative($page2->Link()))->getBody();
-		$this->assertContains("A redirector page has been set up without anywhere to redirect to.", $content);
+		$this->assertContains(_t('RedirectorPage.HASBEENSETUP'), $content);
 	}
 
 	function testReflexiveAndTransitiveInternalRedirectors() {
@@ -32,7 +32,7 @@ class RedirectorPageTest extends FunctionalTest {
 		$page = $this->objFromFixture('RedirectorPage','reflexive');
 		$this->assertEquals(Director::baseURL() . 'reflexive/', $page->Link());
 		$content = $this->get(Director::makeRelative($page->Link()))->getBody();
-		$this->assertContains("A redirector page has been set up without anywhere to redirect to.", $content);
+		$this->assertContains(_t('RedirectorPage.HASBEENSETUP'), $content);
 
 		/* Transitive redirectors are those that point to another redirector page.  They should send people to the URLSegment
 		 * of the destination page - the middle-stop, so to speak.  That should redirect to the final destination */
diff --git a/tests/security/SecurityTest.php b/tests/security/SecurityTest.php
index 08cac634b..623192914 100644
--- a/tests/security/SecurityTest.php
+++ b/tests/security/SecurityTest.php
@@ -72,7 +72,7 @@ class SecurityTest extends FunctionalTest {
 			/* THE FIRST 4 TIMES, THE MEMBER SHOULDN'T BE LOCKED OUT */
 			if($i < 5) {
 				$this->assertNull($member->LockedOutUntil);
-				$this->assertTrue(false !== stripos($this->loginErrorMessage(), "That doesn't seem to be the right e-mail address or password"));
+				$this->assertTrue(false !== stripos($this->loginErrorMessage(), _t('Member.ERRORWRONGCRED')));
 			}
 			
 			/* AFTER THAT THE USER IS LOCKED OUT FOR 15 MINUTES */
@@ -83,7 +83,7 @@ class SecurityTest extends FunctionalTest {
 			}
 			
 			if($i > 5) {
-				$this->assertTrue(false !== stripos($this->loginErrorMessage(), "Your account has been temporarily disabled"));
+				$this->assertTrue(false !== stripos($this->loginErrorMessage(), _t('Member.ERRORLOCKEDOUT')));
 			}
 		}
 		
@@ -112,7 +112,7 @@ class SecurityTest extends FunctionalTest {
 		$this->doTestLoginForm('sam@silverstripe.com' , 'incorrectpassword');
 		$this->doTestLoginForm('sam@silverstripe.com' , 'incorrectpassword');
 		$this->assertNull($this->session()->inst_get('loggedInAs'));
-		$this->assertTrue(false !== stripos($this->loginErrorMessage(), "That doesn't seem to be the right e-mail address or password"));
+		$this->assertTrue(false !== stripos($this->loginErrorMessage(), _t('Member.ERRORWRONGCRED')));
 		
 		$this->doTestLoginForm('sam@silverstripe.com' , '1nitialPassword');
 		$this->assertEquals($this->session()->inst_get('loggedInAs'), $member->ID);