diff --git a/tests/travis/pdo/mysql.phpunit.xml b/tests/travis/pdo/mysql.phpunit.xml
index eb650fa..69eece2 100644
--- a/tests/travis/pdo/mysql.phpunit.xml
+++ b/tests/travis/pdo/mysql.phpunit.xml
@@ -10,7 +10,7 @@
 	stopOnIncomplete="false"
 	stopOnSkipped="false">
 	<php>
-        <const name="DB_DRIVER" value="mysql"/>
+        <const name="DB_DRIVER" value="pdo/mysql"/>
     </php>
 	<testsuites>
 		<testsuite name="CodeIgniter Core Test Suite">
diff --git a/tests/travis/pdo/pgsql.phpunit.xml b/tests/travis/pdo/pgsql.phpunit.xml
index 351f690..e68c3e0 100644
--- a/tests/travis/pdo/pgsql.phpunit.xml
+++ b/tests/travis/pdo/pgsql.phpunit.xml
@@ -10,7 +10,7 @@
 	stopOnIncomplete="false"
 	stopOnSkipped="false">
 	<php>
-        <const name="DB_DRIVER" value="pgsql"/>
+        <const name="DB_DRIVER" value="pdo/pgsql"/>
     </php>
 	<testsuites>
 		<testsuite name="CodeIgniter Core Test Suite">
diff --git a/tests/travis/pdo/sqlite.phpunit.xml b/tests/travis/pdo/sqlite.phpunit.xml
index ae139b7..1871f62 100644
--- a/tests/travis/pdo/sqlite.phpunit.xml
+++ b/tests/travis/pdo/sqlite.phpunit.xml
@@ -10,7 +10,7 @@
 	stopOnIncomplete="false"
 	stopOnSkipped="false">
 	<php>
-        <const name="DB_DRIVER" value="sqlite"/>
+        <const name="DB_DRIVER" value="pdo/sqlite"/>
     </php>
 	<testsuites>
 		<testsuite name="CodeIgniter Core Test Suite">