diff --git a/core/Command/Base.php b/core/Command/Base.php
index abf9f95773a59..2581e273cb91e 100644
--- a/core/Command/Base.php
+++ b/core/Command/Base.php
@@ -161,7 +161,7 @@ protected function abortIfInterrupted() {
 	 *
 	 * Gives a chance to the command to properly terminate what it's doing
 	 */
-	protected function cancelOperation() {
+	public function cancelOperation(): void {
 		$this->interrupted = true;
 	}