Index: trunk/Mars/mcore/fits.h
===================================================================
--- trunk/Mars/mcore/fits.h	(revision 16374)
+++ trunk/Mars/mcore/fits.h	(revision 16414)
@@ -579,5 +579,5 @@
 
         //and special data area size
-        const off_t heapSize  = HasKey("PCOUNT") ? currentTable.Get<size_t>("PCOUNT") : 0;
+        const off_t heapSize  = HasKey("PCOUNT") ? currentTable.Get<off_t>("PCOUNT") : 0;
 
         //skip the row of the table, padded to 2880 bytes