Index: ext/misc/csv.c
==================================================================
--- ext/misc/csv.c
+++ ext/misc/csv.c
@@ -619,11 +619,11 @@
   if( bHeader!=1 ){
     pNew->iStart = 0;
   }else if( pNew->zData ){
     pNew->iStart = (int)sRdr.iIn;
   }else{
-    pNew->iStart = ftell(sRdr.in) - sRdr.nIn + sRdr.iIn;
+    pNew->iStart = (int)(ftell(sRdr.in) - sRdr.nIn + sRdr.iIn);
   }
   csv_reader_reset(&sRdr);
   rc = sqlite3_declare_vtab(db, CSV_SCHEMA);
   if( rc ){
     csv_errmsg(&sRdr, "bad schema: '%s' - %s", CSV_SCHEMA, sqlite3_errmsg(db));