diff --git a/binder/src/main/java/io/grpc/binder/internal/BinderTransport.java b/binder/src/main/java/io/grpc/binder/internal/BinderTransport.java
index 6c89c56ffd4..a7ca5b25b24 100644
--- a/binder/src/main/java/io/grpc/binder/internal/BinderTransport.java
+++ b/binder/src/main/java/io/grpc/binder/internal/BinderTransport.java
@@ -574,6 +574,7 @@ Map<Integer, Inbound<?>> getOngoingCalls() {
   }
 
   @VisibleForTesting
+  @SuppressWarnings("GuardedBy")
   LeakSafeOneWayBinder getIncomingBinderForTesting() {
     return this.incomingBinder;
   }