diff --git a/include/book.h b/include/book.h
index 8d137f302..2baeab921 100644
--- a/include/book.h
+++ b/include/book.h
@@ -98,7 +98,7 @@ class Book
   std::string m_id;
   std::string m_downloadId;
   std::string m_path;
-  bool m_pathValid;
+  bool m_pathValid = false;
   std::string m_title;
   std::string m_description;
   std::string m_language;
@@ -110,10 +110,10 @@ class Book
   std::string m_flavour;
   std::string m_tags;
   std::string m_origId;
-  uint64_t m_articleCount;
-  uint64_t m_mediaCount;
-  bool m_readOnly;
-  uint64_t m_size;
+  uint64_t m_articleCount = 0;
+  uint64_t m_mediaCount = 0;
+  bool m_readOnly = false;
+  uint64_t m_size = 0;
   mutable std::string m_favicon;
   std::string m_faviconUrl;
   std::string m_faviconMimeType;
diff --git a/src/book.cpp b/src/book.cpp
index d8e90d7ca..beb3b5eba 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -156,6 +156,8 @@ void Book::updateFromOpds(const pugi::xml_node& node, const std::string& urlHost
   m_name = VALUE("name");
   m_flavour = VALUE("flavour");
   m_tags = VALUE("tags");
+  m_articleCount = strtoull(VALUE("articleCount"), 0, 0);
+  m_mediaCount = strtoull(VALUE("mediaCount"), 0, 0);
   for(auto linkNode = node.child("link"); linkNode;
            linkNode = linkNode.next_sibling("link")) {
     std::string rel = linkNode.attribute("rel").value();
diff --git a/src/opds_dumper.cpp b/src/opds_dumper.cpp
index dd584e29f..115ba4c38 100644
--- a/src/opds_dumper.cpp
+++ b/src/opds_dumper.cpp
@@ -78,6 +78,8 @@ pugi::xml_node OPDSDumper::handleBook(Book book, pugi::xml_node root_node) {
   ADD_TEXT_ENTRY(entry_node, "name", book.getName());
   ADD_TEXT_ENTRY(entry_node, "flavour", book.getFlavour());
   ADD_TEXT_ENTRY(entry_node, "tags", book.getTags());
+  ADD_TEXT_ENTRY(entry_node, "articleCount", to_string(book.getArticleCount()));
+  ADD_TEXT_ENTRY(entry_node, "mediaCount", to_string(book.getMediaCount()));
   ADD_TEXT_ENTRY(entry_node, "icon", rootLocation + "/meta?name=favicon&content=" + book.getHumanReadableIdFromPath());
 
   auto content_node = entry_node.append_child("link");