diff --git a/tests/util/models/gpflow/models.py b/tests/util/models/gpflow/models.py
index 0cd1937f0a..650fc65f08 100644
--- a/tests/util/models/gpflow/models.py
+++ b/tests/util/models/gpflow/models.py
@@ -164,6 +164,9 @@ def reparam_sampler(
     ) -> ReparametrizationSampler[GaussianProcessWithoutNoise]:
         return IndependentReparametrizationSampler(num_samples, self)
 
+    def log(self, dataset: Optional[Dataset] = None) -> None:
+        return
+
 
 class GaussianProcessWithSamplers(GaussianProcess, HasReparamSampler):
     """A (static) Gaussian process over a vector random variable with independent reparam sampler"""