diff --git a/media/java/android/media/MediaCodec.java b/media/java/android/media/MediaCodec.java
index 8220a744794e8..6f7b58348758b 100644
--- a/media/java/android/media/MediaCodec.java
+++ b/media/java/android/media/MediaCodec.java
@@ -918,9 +918,9 @@ final public class MediaCodec {
         }
 
         /**
-         * This indicates that no key has been set to perform the requested
-         * decrypt operation.  The operation can be retried after adding
-         * a decryption key.
+         * This indicates that the requested key was not found when trying to
+         * perform a decrypt operation.  The operation can be retried after adding
+         * the correct decryption key.
          */
         public static final int ERROR_NO_KEY = 1;