diff --git a/testpar/t_dset.c b/testpar/t_dset.c
index b75b6aefa97..dfa9a33c7dd 100644
--- a/testpar/t_dset.c
+++ b/testpar/t_dset.c
@@ -3501,6 +3501,8 @@ test_no_collective_cause_mode(int selection_mode)
         sid = H5Screate(H5S_NULL);
         VRFY((sid >= 0), "H5Screate_simple succeeded");
         is_chunked = 0;
+
+        dims[0] = dims[1] = 0;
     }
     else {
         /* Create the basic Space */