diff --git a/includes/cli.php b/includes/cli.php
index d9f7ee9..deca0b0 100644
--- a/includes/cli.php
+++ b/includes/cli.php
@@ -414,7 +414,7 @@ private function format_output( $transients, $assoc_args ) {
 
 			if ( ! empty( $assoc_args['fields'] ) ) {
 				if ( is_string( $assoc_args['fields'] ) ) {
-					$fields = explode( ',', $assoc_args );
+					$fields = explode( ',', $assoc_args['fields'] );
 				} else {
 					$fields = $assoc_args['fields'];
 				}