diff --git a/bin/ftsv2csv b/bin/ftsv2csv
index 6ffc6d7..b213f14 100755
--- a/bin/ftsv2csv
+++ b/bin/ftsv2csv
@@ -16,8 +16,8 @@ def read_options():
 
 def write_csv(fd, ds):
     rowdim, coldim = ds.get_dim_name()
-    rowids = ds.get_identifiers(rowdim)
-    colids = ds.get_identifiers(coldim)
+    rowids = ds.get_identifiers(rowdim, sorted=True)
+    colids = ds.get_identifiers(coldim, sorted=True)
     x = ds.asarray()
 
     ## Print ID row