diff --git a/apollo-router/src/query_planner/execution.rs b/apollo-router/src/query_planner/execution.rs
index 74643d38e3e..c7348d7a4e3 100644
--- a/apollo-router/src/query_planner/execution.rs
+++ b/apollo-router/src/query_planner/execution.rs
@@ -102,7 +102,7 @@ impl QueryPlan {
         self.root.subgraph_fetches()
     }
 
-    pub fn service_usage<'a>(&'a self) -> Box<dyn Iterator<Item = &'a str> + 'a> {
+    pub(crate) fn service_usage<'a>(&'a self) -> Box<dyn Iterator<Item = &'a str> + 'a> {
         self.root.service_usage()
     }
 }