diff --git a/wp-includes/meta.php b/wp-includes/meta.php
index cfbaf20d71..f8ca989845 100644
--- a/wp-includes/meta.php
+++ b/wp-includes/meta.php
@@ -356,6 +356,7 @@ function update_meta_cache($meta_type, $object_ids) {
  * Given a meta query, generates SQL clauses to be appended to a main query
  *
  * @since 3.1.0
+ * @access private
  *
  * @param array $meta_query List of metadata queries. A single query is an associative array:
  * - 'key' string The meta key
@@ -373,7 +374,7 @@ function update_meta_cache($meta_type, $object_ids) {
  * @param object $context (optional) The main query object
  * @return array( 'join' => $join_sql, 'where' => $where_sql )
  */
-function get_meta_sql( $meta_query, $meta_type, $primary_table, $primary_id_column, $context = null ) {
+function _get_meta_sql( $meta_query, $meta_type, $primary_table, $primary_id_column, $context = null ) {
 	global $wpdb;
 
 	if ( ! $meta_table = _get_meta_table( $meta_type ) )
diff --git a/wp-includes/query.php b/wp-includes/query.php
index fd81f2d40b..fbf6d3556c 100644
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -2347,7 +2347,7 @@ class WP_Query {
 		}
 
 		if ( !empty( $q['meta_query'] ) ) {
-			$clauses = call_user_func_array( 'get_meta_sql', array( $q['meta_query'], 'post', $wpdb->posts, 'ID', &$this) );
+			$clauses = call_user_func_array( '_get_meta_sql', array( $q['meta_query'], 'post', $wpdb->posts, 'ID', &$this) );
 			$join .= $clauses['join'];
 			$where .= $clauses['where'];
 		}
diff --git a/wp-includes/user.php b/wp-includes/user.php
index a13628467a..cd31edb0d4 100644
--- a/wp-includes/user.php
+++ b/wp-includes/user.php
@@ -508,7 +508,7 @@ class WP_User_Query {
 		}
 
 		if ( !empty( $qv['meta_query'] ) ) {
-			$clauses = call_user_func_array( 'get_meta_sql', array( $qv['meta_query'], 'user', $wpdb->users, 'ID', &$this ) );
+			$clauses = call_user_func_array( '_get_meta_sql', array( $qv['meta_query'], 'user', $wpdb->users, 'ID', &$this ) );
 			$this->query_from .= $clauses['join'];
 			$this->query_where .= $clauses['where'];
 		}