diff --git a/MathLaTeXML.php b/MathLaTeXML.php
index b30a820..4915058 100644
--- a/MathLaTeXML.php
+++ b/MathLaTeXML.php
@@ -182,8 +182,7 @@ class MathLaTeXML extends MathMathML {
 		$renderer = new MathMathML( $this->getTex() );
 		$renderer->setMathml( $this->getMathml() );
 		$renderer->setMode( MW_MATH_LATEXML );
-		$renderer->setPurge( true );
-		$res = $renderer->render();
+		$res = $renderer->render( true );
 		if ( $res == true ) {
 			$this->svg = $renderer->getSvg();
 		} else {
diff --git a/MathMathML.php b/MathMathML.php
index 82eea5e..3d1a931 100644
--- a/MathMathML.php
+++ b/MathMathML.php
@@ -104,7 +104,7 @@ class MathMathML extends MathRenderer {
 			wfDebugLog( "Math", "Rerendering was requested." );
 			return true;
 		} else {
-			$dbres = $this->readFromDatabase();
+			$dbres = $this->isInDatabase();
 			if ( $dbres ) {
 				if ( $this->isValidMathML( $this->getMathml() ) ) {
 					wfDebugLog( "Math", "Valid MathML entry found in database." );
diff --git a/MathTexvc.php b/MathTexvc.php
index f5e4f61..057007c 100644
--- a/MathTexvc.php
+++ b/MathTexvc.php
@@ -387,7 +387,7 @@ class MathTexvc extends MathRenderer {
 		global $wgMathCheckFiles;
 
 		wfProfileIn( __METHOD__ );
-		if ( $this->readFromDatabase() ) {
+		if ( $this->isInDatabase() ) {
 			if ( !$wgMathCheckFiles ) {
 				// Short-circuit the file existence & migration checks
 				wfProfileOut( __METHOD__ );
@@ -413,8 +413,8 @@ class MathTexvc extends MathRenderer {
 		return $backend->getFileContents( array( 'src' => $this->getHashPath() . "/" . $this->getHash() . '.png' ) );
 	}
 
-	public function readFromDatabase() {
-		$return = parent::readFromDatabase();
+	public function isInDatabase() {
+		$return = parent::isInDatabase();
 		if ( $this->hash && $return ) {
 			return true;
 		} else {