diff --git a/manifest_xml.py b/manifest_xml.py
index 92ef785..4eef748 100644
--- a/manifest_xml.py
+++ b/manifest_xml.py
@@ -665,6 +665,16 @@
     else:
       sync_s = sync_s.lower() in ("yes", "true", "1")
 
+    clone_depth = node.getAttribute('clone-depth')
+    if clone_depth:
+      try:
+        clone_depth = int(clone_depth)
+        if  clone_depth <= 0:
+          raise ValueError()
+      except ValueError:
+        raise ManifestParseError('invalid clone-depth %s in %s' %
+                                 (clone_depth, self.manifestFile))
+
     upstream = node.getAttribute('upstream')
 
     groups = ''
@@ -692,6 +702,7 @@
                       groups = groups,
                       sync_c = sync_c,
                       sync_s = sync_s,
+                      clone_depth = clone_depth,
                       upstream = upstream,
                       parent = parent)