diff --git a/wp-includes/class-wp-term-query.php b/wp-includes/class-wp-term-query.php
index cae93a920d..f0df73f906 100644
--- a/wp-includes/class-wp-term-query.php
+++ b/wp-includes/class-wp-term-query.php
@@ -690,7 +690,9 @@ class WP_Term_Query {
 		}
 
 		if ( 'count' == $_fields ) {
-			return $wpdb->get_var( $this->request );
+			$count = $wpdb->get_var( $this->request );
+			wp_cache_set( $cache_key, $count, 'terms' );
+			return $count;
 		}
 
 		$terms = $wpdb->get_results( $this->request );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 27aabc9a44..1c4635c97c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38783';
+$wp_version = '4.7-alpha-38784';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.