diff --git a/docs/src/examples/05-enzyme-constrained-models.jl b/docs/src/examples/05-enzyme-constrained-models.jl
index 64bbb3955..ce6d9a2f3 100644
--- a/docs/src/examples/05-enzyme-constrained-models.jl
+++ b/docs/src/examples/05-enzyme-constrained-models.jl
@@ -144,3 +144,5 @@ ec_solution2 = simplified_enzyme_constrained_flux_balance_analysis(
     optimizer = Tulip.Optimizer,
     settings = [set_optimizer_attribute("IPM_IterationsLimit", 10_000)],
 )
+
+@test isapprox(ec_solution.objective, ec_solution2.objective, atol = TEST_TOLERANCE) #src