diff --git a/src/Article.cxx b/src/Article.cxx
index 12fea4c..e668d5f 100644
--- a/src/Article.cxx
+++ b/src/Article.cxx
@@ -116,7 +116,7 @@ namespace Article {
 						else if (line.find(k_authors) == 0)
 								strncpy(m->authors, line.substr(k_authors.length()).c_str(), sizeof(m->authors));
 						else if (line.find(k_published) == 0)
-								m->publish_ts = atoi(line.substr(k_published.length()).c_str());
+								m->publish_ts = atol(line.substr(k_published.length()).c_str());
 						else
 								std::cerr << "warning: ignoring unknown key/value due to unknown key: " << line << std::endl;
 				} else if (line[0] == '[') {