diff --git a/doc/changelog.d/4575.fixed.md b/doc/changelog.d/4575.fixed.md
new file mode 100644
index 000000000000..f83664742849
--- /dev/null
+++ b/doc/changelog.d/4575.fixed.md
@@ -0,0 +1 @@
+Nightly dev test due to updates in 'wait_for_process_finished'.
diff --git a/tests/integration/test_optislang/test_optislang_integration.py b/tests/integration/test_optislang/test_optislang_integration.py
index da8d392df832..c02f56bf87cc 100644
--- a/tests/integration/test_optislang/test_optislang_integration.py
+++ b/tests/integration/test_optislang/test_optislang_integration.py
@@ -140,8 +140,6 @@ def test_simple_solve(mixing_elbow_param_case_data_session):
     # A bug has been submitted to address this
     assert output_unit == "K"
 
-    solver_session.exit()
-
 
 @pytest.mark.nightly
 @pytest.mark.codegen_required