diff --git a/ojluni/src/main/java/java/security/Signature.java b/ojluni/src/main/java/java/security/Signature.java
index 8ed1259..e9a5886 100755
--- a/ojluni/src/main/java/java/security/Signature.java
+++ b/ojluni/src/main/java/java/security/Signature.java
@@ -897,6 +897,11 @@
         }
     }
 
+    /**
+     * Returns the {@code SignatureSpi} backing this {@code Signature}.
+     *
+     * @hide
+     */
     public SignatureSpi getCurrentSpi() {
       return null;
     }