diff --git a/org/qmckl_ao.org b/org/qmckl_ao.org
index 603d09c..594b96b 100644
--- a/org/qmckl_ao.org
+++ b/org/qmckl_ao.org
@@ -6513,7 +6513,7 @@ qmckl_compute_ao_vgl_hpc_gaussian (
   <<ao_value_constants>>
 
 #ifdef HAVE_OPENMP
-#pragma omp parallel
+#pragma omp parallel if (point_num > 16)
 #endif
   {
     qmckl_exit_code rc;