diff --git a/includes/Defines.php b/includes/Defines.php
index ce4ede3aebb..e0579cbf065 100644
--- a/includes/Defines.php
+++ b/includes/Defines.php
@@ -59,7 +59,6 @@ define( 'DB_MASTER', -2 );    # Write to master (or only server)
 # Obsolete aliases
 define( 'DB_READ', -1 );
 define( 'DB_WRITE', -2 );
-define( 'DB_LAST', -3 ); # deprecated since 2008, usage throws exception
 
 /**@{
  * Virtual namespaces; don't appear in the page database
diff --git a/includes/db/LoadBalancer.php b/includes/db/LoadBalancer.php
index ee35c13ce46..306c2d36b7e 100644
--- a/includes/db/LoadBalancer.php
+++ b/includes/db/LoadBalancer.php
@@ -414,11 +414,7 @@ class LoadBalancer {
 	public function &getConnection( $i, $groups = array(), $wiki = false ) {
 		wfProfileIn( __METHOD__ );
 
-		if ( $i == DB_LAST ) {
-			wfProfileOut( __METHOD__ );
-			throw new MWException( 'Attempt to call ' . __METHOD__ .
-				' with deprecated server index DB_LAST' );
-		} elseif ( $i === null || $i === false ) {
+		if ( $i === null || $i === false ) {
 			wfProfileOut( __METHOD__ );
 			throw new MWException( 'Attempt to call ' . __METHOD__ .
 				' with invalid server index' );