diff --git a/src/document.cpp b/src/document.cpp
index 3f936ea..275a27a 100644
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -165,7 +165,8 @@ void Document::parse_rss(const pt::ptree &tree)
                        [&](const auto &old_guid)
                        { return guid == old_guid; }))
             {
-                BOOST_LOG_TRIVIAL(debug) << "Found already posted GUID.";
+                BOOST_LOG_TRIVIAL(debug) << "Found already posted GUID: "
+                                         << guid;
                 if (_profiledata.keep_looking)
                 {
                     continue;