diff --git a/gtsam/discrete/DecisionTreeFactor.h b/gtsam/discrete/DecisionTreeFactor.h
index 8445c5332..642187ff1 100644
--- a/gtsam/discrete/DecisionTreeFactor.h
+++ b/gtsam/discrete/DecisionTreeFactor.h
@@ -169,9 +169,6 @@ namespace gtsam {
       }
     }
 
-    /// Convert into a decision tree
-    DecisionTreeFactor toDecisionTreeFactor() const override { return *this; }
-
     /// Create new factor by summing all values with the same separator values
     DiscreteFactor::shared_ptr sum(size_t nrFrontals) const override {
       return combine(nrFrontals, ADT::Ring::add);
diff --git a/gtsam/discrete/DiscreteFactor.h b/gtsam/discrete/DiscreteFactor.h
index 1ada7b7b2..29984d795 100644
--- a/gtsam/discrete/DiscreteFactor.h
+++ b/gtsam/discrete/DiscreteFactor.h
@@ -113,8 +113,6 @@ class GTSAM_EXPORT DiscreteFactor : public Factor {
   virtual DiscreteFactor::shared_ptr operator*(
       const DiscreteFactor::shared_ptr&) const = 0;
 
-  virtual DecisionTreeFactor toDecisionTreeFactor() const = 0;
-
   /// Create new factor by summing all values with the same separator values
   virtual DiscreteFactor::shared_ptr sum(size_t nrFrontals) const = 0;
 
diff --git a/gtsam/discrete/TableFactor.cpp b/gtsam/discrete/TableFactor.cpp
index 53131616d..a8adf0918 100644
--- a/gtsam/discrete/TableFactor.cpp
+++ b/gtsam/discrete/TableFactor.cpp
@@ -180,20 +180,6 @@ DiscreteFactor::shared_ptr TableFactor::operator*(
   }
 }
 
-/* ************************************************************************ */
-DecisionTreeFactor TableFactor::toDecisionTreeFactor() const {
-  DiscreteKeys dkeys = discreteKeys();
-  std::vector<double> table;
-  for (auto i = 0; i < sparse_table_.size(); i++) {
-    table.push_back(sparse_table_.coeff(i));
-  }
-  gttic_(toDecisionTreeFactor_Constructor);
-  // NOTE(Varun): This constructor is really expensive!!
-  DecisionTreeFactor f(dkeys, table);
-  gttoc_(toDecisionTreeFactor_Constructor);
-  return f;
-}
-
 /* ************************************************************************ */
 TableFactor TableFactor::choose(const DiscreteValues parent_assign,
                                 DiscreteKeys parent_keys) const {
diff --git a/gtsam/discrete/TableFactor.h b/gtsam/discrete/TableFactor.h
index e452b5be0..12266b2a5 100644
--- a/gtsam/discrete/TableFactor.h
+++ b/gtsam/discrete/TableFactor.h
@@ -207,9 +207,6 @@ class GTSAM_EXPORT TableFactor : public DiscreteFactor {
     }
   }
 
-  /// Convert into a decisiontree
-  DecisionTreeFactor toDecisionTreeFactor() const override;
-
   /// Create a TableFactor that is a subset of this TableFactor
   TableFactor choose(const DiscreteValues assignments,
                      DiscreteKeys parent_keys) const;