diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java b/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java
index eeaab11af..b0cf8be07 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCache.java
@@ -634,9 +634,9 @@ public boolean lock() throws IOException {
 	public void write() throws IOException {
 		final LockFile tmp = myLock;
 		requireLocked(tmp);
-		try {
-			writeTo(liveFile.getParentFile(),
-					new BufferedOutputStream(tmp.getOutputStream()));
+		try (OutputStream o = tmp.getOutputStream();
+				OutputStream bo = new BufferedOutputStream(o)) {
+			writeTo(liveFile.getParentFile(), bo);
 		} catch (IOException err) {
 			tmp.unlock();
 			throw err;