diff --git a/maintenance/toggleExtension.php b/maintenance/toggleExtension.php
index 84130101e..11826748b 100644
--- a/maintenance/toggleExtension.php
+++ b/maintenance/toggleExtension.php
@@ -50,7 +50,7 @@ public function execute() {
 				if ( !$noList ) {
 					$this->output( "Removed $ext from $wiki" );
 				}
-			} elseif ( !in_array( $ext, $extensionList ) ) {
+			} elseif ( !( in_array( $ext, $extensionList ) ) && $disable ) {
 				$mwExt->add( $ext );
 				$mwExt->commit();
 				if ( !$noList ) {