diff --git a/test/test_physical_processes/test_coupling.jl b/test/test_physical_processes/test_coupling.jl
index 12eefae..e710165 100644
--- a/test/test_physical_processes/test_coupling.jl
+++ b/test/test_physical_processes/test_coupling.jl
@@ -147,8 +147,8 @@
         @test all(isapprox.(
             ypoints,
             [-8; -4.57003; 0.0; 4.57003; repeat([8.0], 3); 4.57003; 0.0;
-                -4.57003; repeat([8.0], 4); repeat([-4.57003], 3);
-                repeat([0.0], 3); repeat([-4.57003], 3);
+                -4.57003; repeat([-8.0], 4); repeat([-4.46447], 3);
+                repeat([0.0], 3); repeat([4.46447], 3);
             ],
             atol = 1e-5
         ))