diff --git a/unoxml/source/rdf/librdf_repository.cxx b/unoxml/source/rdf/librdf_repository.cxx
index aefdc8d6c975..1dc5eaf5904e 100644
--- a/unoxml/source/rdf/librdf_repository.cxx
+++ b/unoxml/source/rdf/librdf_repository.cxx
@@ -23,6 +23,7 @@
 
 #include <set>
 #include <map>
+#include <iterator>
 #include <functional>
 #include <algorithm>