diff --git a/make/java/java/FILES_java.gmk b/make/java/java/FILES_java.gmk
index c35bb29989c8d62cdcceeb972ed2696e3f00b4b9..33d35caeef5d7884b12059ec4f401c3338872702 100644
--- a/make/java/java/FILES_java.gmk
+++ b/make/java/java/FILES_java.gmk
@@ -147,6 +147,7 @@ JAVA_JAVA_java = \
 	java/lang/ref/PhantomReference.java \
     java/lang/ref/ReferenceQueue.java \
     java/lang/ref/Finalizer.java \
+    java/util/Base64.java \
     java/util/BitSet.java \
     java/util/Calendar.java \
         java/util/GregorianCalendar.java \