diff --git a/libcorpus2/io/cclreader.cpp b/libcorpus2/io/cclreader.cpp
index 34094a83f57add41f87dd3b078ca222a830fcd80..97b066f0ea2467069d3805c6fb9712de6d343de8 100644
--- a/libcorpus2/io/cclreader.cpp
+++ b/libcorpus2/io/cclreader.cpp
@@ -309,6 +309,8 @@ void CclReader::set_option(const std::string& option)
 		impl_->set_autogen_sent_id(true);
 	} else if (option == "autogen_chunk_id") {
 		impl_->set_autogen_chunk_id(true);
+	} else if (option == "no_warn_unexpected_xml") {
+		impl_->set_warn_on_unexpected(false);
 	}
 	else {
 		BufferedChunkReader::set_option(option);
@@ -320,11 +322,13 @@ std::string CclReader::get_option(const std::string& option) const
 	if (option == "disamb_only") {
 		return impl_->get_disamb_only() ? option : "";
 	} else if (option == "no_warn_inconsistent") {
-		return impl_->get_warn_on_inconsistent() ? option : "";
+		return impl_->get_warn_on_inconsistent() ? "" : option;
 	} else if (option == "autogen_sent_id") {
-		return impl_->get_autogen_sent_id() ? "autogen_sent_id" : "";
+		return impl_->get_autogen_sent_id() ? option : "";
 	} else if (option == "autogen_chunk_id") {
-		return impl_->get_autogen_chunk_id() ? "autogen_chunk_id" : "";
+		return impl_->get_autogen_chunk_id() ? option : "";
+	} else if (option == "no_warn_unexpected_xml") {
+		return impl_->get_warn_on_unexpected() ? "" : option;
 	}
 	return BufferedChunkReader::get_option(option);
 }
diff --git a/libcorpus2_whole/io/documentreader.cpp b/libcorpus2_whole/io/documentreader.cpp
index 8aa1a79a421c4e08add2b75b48040fed6ad974af..c30a4fbadf8960189c9585e0284cf69546131f96 100644
--- a/libcorpus2_whole/io/documentreader.cpp
+++ b/libcorpus2_whole/io/documentreader.cpp
@@ -31,6 +31,10 @@ namespace whole {
 		const std::string &annot_path, const std::string &rela_path)
 	{
 		ccl_reader_ = boost::make_shared<CclReader>(tagset, annot_path);
+		// prevent the underlying CCL reader from complaining about
+		// relation XML tags unknown to the reader itself
+		// (in case annot_path and rela_path poin to the same file)
+		ccl_reader_->set_option("no_warn_unexpected_xml");
 		rel_reader_ = boost::make_shared<RelationReader>(rela_path);
 	}