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-rw-r--r--src/lib/dcp_decoder.cc4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/lib/dcp_decoder.cc b/src/lib/dcp_decoder.cc
index 19831185d..ab724cd6c 100644
--- a/src/lib/dcp_decoder.cc
+++ b/src/lib/dcp_decoder.cc
@@ -451,7 +451,9 @@ DCPDecoder::calculate_lazy_digest (shared_ptr<const DCPContent> c) const
BOOST_FOREACH (boost::filesystem::path i, c->paths()) {
d.add (i.string());
}
- d.add (static_cast<bool>(_dcp_content->kdm()));
+ if (_dcp_content->kdm()) {
+ d.add(_dcp_content->kdm()->id());
+ }
d.add (static_cast<bool>(c->cpl()));
if (c->cpl()) {
d.add (c->cpl().get());