diff --git a/LCS/Common/include/Common/lofar_iosfwd.h b/LCS/Common/include/Common/lofar_iosfwd.h
index d96ab222465b5fc0de4deba1f1e6538643d5e64e..b5090ad00ae6e838f1da1243b90ea50649c9f5a9 100644
--- a/LCS/Common/include/Common/lofar_iosfwd.h
+++ b/LCS/Common/include/Common/lofar_iosfwd.h
@@ -38,6 +38,9 @@ namespace LOFAR
   using std::ifstream;
   using std::ofstream;
   using std::fstream;
+  using std::streamsize;
+  using std::streampos;
+  using std::streamoff;
 }
 
 #endif