diff --git a/core/src/main/scala/cats/syntax/nested.scala b/core/src/main/scala/cats/syntax/nested.scala
index c31af329d2..f0fadbc960 100644
--- a/core/src/main/scala/cats/syntax/nested.scala
+++ b/core/src/main/scala/cats/syntax/nested.scala
@@ -8,7 +8,7 @@ trait NestedSyntax {
     new NestedIdOps[F, G, A](value)
 }
 
-final class NestedIdOps[F[_], G[_], A](val value: F[G[A]]) extends AnyVal {
+final class NestedIdOps[F[_], G[_], A](private[syntax] val value: F[G[A]]) extends AnyVal {
   /**
     * Wrap a value in `Nested`.
     *