diff --git a/articles/000544/000544.xml b/articles/000544/000544.xml
index 00da695fa..0f8bf8371 100644
--- a/articles/000544/000544.xml
+++ b/articles/000544/000544.xml
@@ -12,7 +12,7 @@
                     historical texts using stable model semantics</title>
                 <dhq:authorInfo>
                     <!-- Include a separate <dhq:authorInfo> element for each author -->
-                    <dhq:author_name>Davor<dhq:family>Lauc</dhq:family></dhq:author_name>
+                    <dhq:author_name>Davor <dhq:family>Lauc</dhq:family></dhq:author_name>
                     <dhq:affiliation>Chair of Logic, Department of Philosophy, Faculty of Humanities
                         and Social Sciences, University of Zagreb</dhq:affiliation>
                     <email>davor@lauc.org</email>
@@ -31,7 +31,7 @@
                 </dhq:authorInfo>
                 <dhq:authorInfo>
                     <!-- Include a separate <dhq:authorInfo> element for each author -->
-                    <dhq:author_name>Darko<dhq:family>Vitek</dhq:family></dhq:author_name>
+                    <dhq:author_name>Darko <dhq:family>Vitek</dhq:family></dhq:author_name>
                     <dhq:affiliation>Department of History, Centre of Croatian Studies, University
                         of Zagreb</dhq:affiliation>
                     <email>dvitek@hrstud.hr</email>