diff --git a/gtsam/discrete/AlgebraicDecisionTree.h b/gtsam/discrete/AlgebraicDecisionTree.h
index 383346ab1..a8ec66f73 100644
--- a/gtsam/discrete/AlgebraicDecisionTree.h
+++ b/gtsam/discrete/AlgebraicDecisionTree.h
@@ -57,6 +57,9 @@ namespace gtsam {
 
     AlgebraicDecisionTree(double leaf = 1.0) : Base(leaf) {}
 
+    /// Constructor which accepts root pointer
+    AlgebraicDecisionTree(const typename Base::NodePtr root) : Base(root) {}
+
     // Explicitly non-explicit constructor
     AlgebraicDecisionTree(const Base& add) : Base(add) {}
 
diff --git a/gtsam/discrete/TableDistribution.cpp b/gtsam/discrete/TableDistribution.cpp
index 621e6e394..4b9979d3a 100644
--- a/gtsam/discrete/TableDistribution.cpp
+++ b/gtsam/discrete/TableDistribution.cpp
@@ -45,15 +45,14 @@ static Eigen::SparseVector<double> normalizeSparseTable(
 
 /* ************************************************************************** */
 TableDistribution::TableDistribution(const TableFactor& f)
-    : BaseConditional(f.keys().size(),
-                      DecisionTreeFactor(f.discreteKeys(), ADT())),
+    : BaseConditional(f.keys().size(), f.discreteKeys(), ADT(nullptr)),
       table_(f / (*std::dynamic_pointer_cast<TableFactor>(
                      f.sum(f.keys().size())))) {}
 
 /* ************************************************************************** */
 TableDistribution::TableDistribution(const DiscreteKeys& keys,
                                      const std::vector<double>& potentials)
-    : BaseConditional(keys.size(), keys, DecisionTreeFactor(keys, ADT())),
+    : BaseConditional(keys.size(), keys, ADT(nullptr)),
       table_(TableFactor(
           keys, normalizeSparseTable(TableFactor::Convert(keys, potentials)))) {
 }
@@ -61,7 +60,7 @@ TableDistribution::TableDistribution(const DiscreteKeys& keys,
 /* ************************************************************************** */
 TableDistribution::TableDistribution(const DiscreteKeys& keys,
                                      const std::string& potentials)
-    : BaseConditional(keys.size(), keys, DecisionTreeFactor(keys, ADT())),
+    : BaseConditional(keys.size(), keys, ADT(nullptr)),
       table_(TableFactor(
           keys, normalizeSparseTable(TableFactor::Convert(keys, potentials)))) {
 }