diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectCheckerTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectCheckerTest.java
index 7c2676bc7..2e470b386 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectCheckerTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ObjectCheckerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008, Google Inc.
+ * Copyright (C) 2008-2010, Google Inc.
  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
  * and other copyright owners as documented in the project's IP log.
  *
@@ -868,26 +868,7 @@ public void testInvalidTagNoTagHeader3() {
 		}
 	}
 
-	public void testInvalidTagNoTagHeader4() {
-		final StringBuilder b = new StringBuilder();
-
-		b.append("object ");
-		b.append("be9bfa841874ccc9f2ef7c48d0c76226f89b7189");
-		b.append('\n');
-
-		b.append("type commit\n");
-		b.append("tag foo");
-
-		final byte[] data = Constants.encodeASCII(b.toString());
-		try {
-			checker.checkTag(data);
-			fail("incorrectly accepted invalid tag");
-		} catch (CorruptObjectException e) {
-			assertEquals("no tagger header", e.getMessage());
-		}
-	}
-
-	public void testInvalidTagNoTaggerHeader1() {
+	public void testValidTagHasNoTaggerHeader() throws CorruptObjectException {
 		final StringBuilder b = new StringBuilder();
 
 		b.append("object ");
@@ -897,13 +878,7 @@ public void testInvalidTagNoTaggerHeader1() {
 		b.append("type commit\n");
 		b.append("tag foo\n");
 
-		final byte[] data = Constants.encodeASCII(b.toString());
-		try {
-			checker.checkTag(data);
-			fail("incorrectly accepted invalid tag");
-		} catch (CorruptObjectException e) {
-			assertEquals("no tagger header", e.getMessage());
-		}
+		checker.checkTag(Constants.encodeASCII(b.toString()));
 	}
 
 	public void testInvalidTagInvalidTaggerHeader1() {
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/RevTagParseTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/RevTagParseTest.java
index 8800536d2..b3e62f49e 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/RevTagParseTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/RevTagParseTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008-2009, Google Inc.
+ * Copyright (C) 2008-2010, Google Inc.
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
@@ -140,6 +140,51 @@ public void testParseAllFields() throws Exception {
 		assertEquals(taggerEmail, cTagger.getEmailAddress());
 	}
 
+	public void testParseOldStyleNoTagger() throws Exception {
+		final ObjectId treeId = id("9788669ad918b6fcce64af8882fc9a81cb6aba67");
+		final String name = "v1.2.3.4.5";
+		final String message = "test\n" //
+				+ "\n" //
+				+ "-----BEGIN PGP SIGNATURE-----\n" //
+				+ "Version: GnuPG v1.4.1 (GNU/Linux)\n" //
+				+ "\n" //
+				+ "iD8DBQBC0b9oF3Y\n" //
+				+ "-----END PGP SIGNATURE------n";
+
+		final StringBuilder body = new StringBuilder();
+
+		body.append("object ");
+		body.append(treeId.name());
+		body.append("\n");
+
+		body.append("type tree\n");
+
+		body.append("tag ");
+		body.append(name);
+		body.append("\n");
+		body.append("\n");
+		body.append(message);
+
+		final RevWalk rw = new RevWalk(db);
+		final RevTag c;
+
+		c = new RevTag(id("9473095c4cb2f12aefe1db8a355fe3fafba42f67"));
+		assertNull(c.getObject());
+		assertNull(c.getTagName());
+
+		c.parseCanonical(rw, body.toString().getBytes("UTF-8"));
+		assertNotNull(c.getObject());
+		assertEquals(treeId, c.getObject().getId());
+		assertSame(rw.lookupTree(treeId), c.getObject());
+
+		assertNotNull(c.getTagName());
+		assertEquals(name, c.getTagName());
+		assertEquals("test", c.getShortMessage());
+		assertEquals(message, c.getFullMessage());
+
+		assertNull(c.getTaggerIdent());
+	}
+
 	private RevTag create(final String msg) throws Exception {
 		final StringBuilder b = new StringBuilder();
 		b.append("object 9788669ad918b6fcce64af8882fc9a81cb6aba67\n");
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectChecker.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectChecker.java
index 82a8c3825..5906802d1 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectChecker.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/ObjectChecker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008, Google Inc.
+ * Copyright (C) 2008-2010, Google Inc.
  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
  * and other copyright owners as documented in the project's IP log.
  *
@@ -217,10 +217,10 @@ public void checkTag(final byte[] raw) throws CorruptObjectException {
 			throw new CorruptObjectException("no tag header");
 		ptr = nextLF(raw, ptr);
 
-		if ((ptr = match(raw, ptr, tagger)) < 0)
-			throw new CorruptObjectException("no tagger header");
-		if ((ptr = personIdent(raw, ptr)) < 0 || raw[ptr++] != '\n')
-			throw new CorruptObjectException("invalid tagger");
+		if ((ptr = match(raw, ptr, tagger)) > 0) {
+			if ((ptr = personIdent(raw, ptr)) < 0 || raw[ptr++] != '\n')
+				throw new CorruptObjectException("invalid tagger");
+		}
 	}
 
 	private static int lastPathChar(final int mode) {