diff --git a/module/VuFind/src/VuFind/ILS/Driver/MultiBackend.php b/module/VuFind/src/VuFind/ILS/Driver/MultiBackend.php
index b187b57f15101d04f3dd15a6bf48af1bf9695cf1..ba48d0789dd360d41c4d81c78366575d73b7772c 100644
--- a/module/VuFind/src/VuFind/ILS/Driver/MultiBackend.php
+++ b/module/VuFind/src/VuFind/ILS/Driver/MultiBackend.php
@@ -258,8 +258,6 @@ class MultiBackend extends AbstractBase implements ServiceLocatorAwareInterface
      */
     protected function getUninitializedDriver($source)
     {
-        $source = strtolower($source);
-
         // We don't really care if it's initialized here.  If it is, then there's
         // still no added overhead of returning an initialized driver.
         if (isset($this->cache[$source])) {