diff --git a/pymc/variational/operators.py b/pymc/variational/operators.py
index f6ef095723..29845088fc 100644
--- a/pymc/variational/operators.py
+++ b/pymc/variational/operators.py
@@ -142,6 +142,7 @@ def __init__(self, approx, temperature=1):
 
     def apply(self, f):
         # f: kernel function for KSD f(histogram) -> (k(x,.), \nabla_x k(x,.))
+        pytensor.dprint(self.approx.model.logp())
         if _known_scan_ignored_inputs([self.approx.model.logp()]):
             raise NotImplementedInference(
                 "SVGD does not currently support Minibatch or Simulator RV"
diff --git a/requirements-dev.txt b/requirements-dev.txt
index b21437de01..8aff7d60c9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -30,4 +30,4 @@ sphinx>=1.5
 sphinxext-rediraffe
 types-cachetools
 typing-extensions>=3.7.4
-watermark
\ No newline at end of file
+watermark