diff --git a/jdk/make/java/nio/FILES_java.gmk b/jdk/make/java/nio/FILES_java.gmk
index f3ba8254868..e38e4c67d0b 100644
--- a/jdk/make/java/nio/FILES_java.gmk
+++ b/jdk/make/java/nio/FILES_java.gmk
@@ -234,6 +234,7 @@ FILES_src = \
 	sun/nio/cs/UTF_16BE.java \
 	sun/nio/cs/UTF_16LE.java \
 	sun/nio/cs/UTF_8.java \
+	sun/nio/cs/Unicode.java \
 	sun/nio/cs/UnicodeDecoder.java \
 	sun/nio/cs/UnicodeEncoder.java \
 	sun/nio/cs/UTF_32.java \