diff --git a/src/wp-includes/blocks.php b/src/wp-includes/blocks.php
index ed66f57b45725..42de8ca85f2ee 100644
--- a/src/wp-includes/blocks.php
+++ b/src/wp-includes/blocks.php
@@ -480,7 +480,7 @@ function register_block_type_from_metadata( $file_or_folder, $args = array() ) {
 			 *
 			 * @return string Returns the list of block variations.
 			 */
-			$metadata['variations_callback'] = static function () use ( $variations_path ) {
+			$metadata['variation_callback'] = static function () use ( $variations_path ) {
 				$variations = require $variations_path;
 				return $variations;
 			};
diff --git a/tests/phpunit/tests/blocks/register.php b/tests/phpunit/tests/blocks/register.php
index 550333cf2dc8e..2b434475cd954 100644
--- a/tests/phpunit/tests/blocks/register.php
+++ b/tests/phpunit/tests/blocks/register.php
@@ -1103,7 +1103,7 @@ public function test_block_registers_with_metadata_fixture() {
 		// @ticket 53148
 		$this->assertIsCallable( $result->render_callback );
 		// @ticket 61280
-		$this->assertIsCallable( $result->variations_callback );
+		$this->assertIsCallable( $result->variation_callback );
 	}
 
 	/**