diff --git a/russell_ode/tests/test_radau5_robertson_small_h.rs b/russell_ode/tests/test_radau5_robertson_small_h.rs
index 58918cf3..90b0db10 100644
--- a/russell_ode/tests/test_radau5_robertson_small_h.rs
+++ b/russell_ode/tests/test_radau5_robertson_small_h.rs
@@ -28,6 +28,8 @@ fn test_radau5_robertson_small_h() {
     // get statistics
     let stat = solver.stats();
 
+    println!("TODO");
+
     // print and check statistics
     println!("{}", stat.summary());
     println!("y ={}{}", format_fortran(y0[0]), format_fortran(y0[1]));