diff --git a/tests/integration/test_mixed_space_bayesian_optimization.py b/tests/integration/test_mixed_space_bayesian_optimization.py
index ce80c030c..16bc91a9a 100644
--- a/tests/integration/test_mixed_space_bayesian_optimization.py
+++ b/tests/integration/test_mixed_space_bayesian_optimization.py
@@ -253,6 +253,7 @@ def objective(x: TensorType) -> TensorType:
     )
 
 
+@random_seed
 def _get_categorical_problem() -> SingleObjectiveTestProblem[TaggedProductSearchSpace]:
     # a categorical scaled branin problem with 6 categories mapping to 3 random points
     # plus the 3 minimizer points (to guarantee that the minimum is present)