diff --git a/src/util/ndnd-id-fetcher.hpp b/src/util/ndnd-id-fetcher.hpp
index c78a385..4f5758d 100644
--- a/src/util/ndnd-id-fetcher.hpp
+++ b/src/util/ndnd-id-fetcher.hpp
@@ -58,7 +58,7 @@
   if (ndndIdData->getSignature().getType() == Signature::Sha256WithRsa)
     {
       ndndId_.resize(32);
-      ndn_digestSha256(ndndIdData->getSignature().getValue().value(), ndndIdData->getSignature().getValue().value_size(), ndndId_.buf());
+      ndn_digestSha256(ndndIdData->getContent().value(), ndndIdData->getContent().value_size(), ndndId_.buf());
       onSuccess_();
     }
   else