diff --git a/pymc3/distributions/multivariate.py b/pymc3/distributions/multivariate.py
index 9e99841cd41..100c517a9a2 100644
--- a/pymc3/distributions/multivariate.py
+++ b/pymc3/distributions/multivariate.py
@@ -802,8 +802,8 @@ def dist(cls, nu, V, *args, **kwargs):
             "https://github.com/pymc-devs/pymc3/issues/538.",
             UserWarning,
         )
-        nu = at.as_tensor_variable(nu)
-        V = at.as_tensor_variable(V)
+        nu = at.as_tensor_variable(intX(nu))
+        V = at.as_tensor_variable(floatX(V))
 
         # mean = nu * V
         # p = V.shape[0]