diff --git a/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java b/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java
index da9ade0d8f7..8ac2316d277 100644
--- a/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java
+++ b/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFField.java
@@ -261,7 +261,7 @@ import com.sun.imageio.plugins.tiff.TIFFIFD;
  * @see   TIFFDirectory
  * @see   TIFFTag
  */
-public class TIFFField implements Cloneable {
+public final class TIFFField implements Cloneable {
 
     private static final String[] typeNames = {
         null,
diff --git a/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFImageReadParam.java b/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFImageReadParam.java
index 9c120d094ef..1b8821aef1c 100644
--- a/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFImageReadParam.java
+++ b/jdk/src/java.desktop/share/classes/javax/imageio/plugins/tiff/TIFFImageReadParam.java
@@ -48,7 +48,7 @@ import javax.imageio.ImageReadParam;
  *
  * @since 9
  */
-public class TIFFImageReadParam extends ImageReadParam {
+public final class TIFFImageReadParam extends ImageReadParam {
 
     private List<TIFFTagSet> allowedTagSets = new ArrayList<TIFFTagSet>(4);