diff --git a/tree/treeplayer/inc/ROOT/TDFActionHelpers.hxx b/tree/treeplayer/inc/ROOT/TDFActionHelpers.hxx
index ee1b18ab48cb8..118ee5ec5e6b9 100644
--- a/tree/treeplayer/inc/ROOT/TDFActionHelpers.hxx
+++ b/tree/treeplayer/inc/ROOT/TDFActionHelpers.hxx
@@ -52,7 +52,7 @@ public:
 };
 
 class CountHelper {
-   std::shared_ptr<unsigned int> fResultCount;
+   const std::shared_ptr<unsigned int> fResultCount;
    std::vector<Count_t> fCounts;
 
 public:
@@ -71,7 +71,7 @@ class FillHelper {
 
    std::vector<Buf_t> fBuffers;
    std::vector<Buf_t> fWBuffers;
-   std::shared_ptr<Hist_t> fResultHist;
+   const std::shared_ptr<Hist_t> fResultHist;
    unsigned int fNSlots;
    unsigned int fBufSize;
    Buf_t fMin;
@@ -318,7 +318,7 @@ public:
 template <typename F, typename T>
 class ReduceHelper {
    F fReduceFun;
-   std::shared_ptr<T> fReduceRes;
+   const std::shared_ptr<T> fReduceRes;
    std::vector<T> fReduceObjs;
 
 public:
@@ -339,7 +339,7 @@ public:
 };
 
 class MinHelper {
-   std::shared_ptr<double> fResultMin;
+   const std::shared_ptr<double> fResultMin;
    std::vector<double> fMins;
 
 public:
@@ -365,7 +365,7 @@ extern template void MinHelper::Exec(unsigned int, const std::vector<int> &);
 extern template void MinHelper::Exec(unsigned int, const std::vector<unsigned int> &);
 
 class MaxHelper {
-   std::shared_ptr<double> fResultMax;
+   const std::shared_ptr<double> fResultMax;
    std::vector<double> fMaxs;
 
 public:
@@ -389,7 +389,7 @@ extern template void MaxHelper::Exec(unsigned int, const std::vector<int> &);
 extern template void MaxHelper::Exec(unsigned int, const std::vector<unsigned int> &);
 
 class MeanHelper {
-   std::shared_ptr<double> fResultMean;
+   const std::shared_ptr<double> fResultMean;
    std::vector<Count_t> fCounts;
    std::vector<double> fSums;
 
diff --git a/tree/treeplayer/inc/ROOT/TDFInterface.hxx b/tree/treeplayer/inc/ROOT/TDFInterface.hxx
index ab0edbc9d016c..38bd76ddec2f5 100644
--- a/tree/treeplayer/inc/ROOT/TDFInterface.hxx
+++ b/tree/treeplayer/inc/ROOT/TDFInterface.hxx
@@ -178,15 +178,7 @@ public:
    /// Refer to the first overload of this method for the full documentation.
    TInterface<TFilterBase> Filter(std::string_view expression, std::string_view name = "")
    {
-      auto df = GetDataFrameChecked();
-      auto tree = df->GetTree();
-      auto branches = tree ? tree->GetListOfBranches() : nullptr;
-      auto tmpBranches = fProxiedPtr->GetTmpBranches();
-      auto tmpBookedBranches = df->GetBookedBranches();
-      const std::string expressionInt(expression);
-      const std::string nameInt(name);
-      auto retVal = TDFInternal::JitTransformation(this, "Filter", GetNodeTypeName(), nameInt, expressionInt, branches,
-                                                   tmpBranches, tmpBookedBranches, tree);
+      auto retVal = CallJitTransformation("Filter", name, expression);
       return *(TInterface<TFilterBase> *)retVal;
    }
 
@@ -239,14 +231,7 @@ public:
    /// Refer to the first overload of this method for the full documentation.
    TInterface<TCustomColumnBase> Define(std::string_view name, std::string_view expression)
    {
-      auto df = GetDataFrameChecked();
-      auto tree = df->GetTree();
-      auto branches = tree->GetListOfBranches();
-      auto tmpBranches = fProxiedPtr->GetTmpBranches();
-      auto tmpBookedBranches = df->GetBookedBranches();
-      const std::string expressionInt(expression);
-      const std::string nameInt(name);
-      auto retVal = TDFInternal::JitTransformation(this, "Define", GetNodeTypeName(), nameInt, expressionInt, branches,tmpBranches, tmpBookedBranches, tree);
+      auto retVal = CallJitTransformation("Define", name, expression);
       return *(TInterface<TCustomColumnBase> *)retVal;
    }
 
@@ -908,6 +893,20 @@ public:
    }
 
 private:
+   Long_t CallJitTransformation(std::string_view transformation, std::string_view nodeName, std::string_view expression)
+   {
+      auto df = GetDataFrameChecked();
+      auto tree = df->GetTree();
+      auto branches = tree ? tree->GetListOfBranches() : nullptr;
+      auto tmpBranches = fProxiedPtr->GetTmpBranches();
+      auto tmpBookedBranches = df->GetBookedBranches();
+      const std::string transformInt(transformation);
+      const std::string nameInt(nodeName);
+      const std::string expressionInt(expression);
+      return TDFInternal::JitTransformation(this, transformInt, GetNodeTypeName(), nameInt, expressionInt, branches,
+                                            tmpBranches, tmpBookedBranches, tree);
+   }
+
    inline const char *GetNodeTypeName() { return ""; };
 
    /// Returns the default branches if needed, takes care of the error handling.
@@ -1216,7 +1215,7 @@ protected:
    {
    }
 
-   std::shared_ptr<Proxied> fProxiedPtr;
+   const std::shared_ptr<Proxied> fProxiedPtr;
    std::weak_ptr<TLoopManager> fImplWeakPtr;
 };
 
diff --git a/tree/treeplayer/inc/ROOT/TResultProxy.hxx b/tree/treeplayer/inc/ROOT/TResultProxy.hxx
index 20db9135cd513..b39e97a89fc34 100644
--- a/tree/treeplayer/inc/ROOT/TResultProxy.hxx
+++ b/tree/treeplayer/inc/ROOT/TResultProxy.hxx
@@ -83,10 +83,10 @@ class TResultProxy {
    template <typename W>
    friend TResultProxy<W> TDFDetail::MakeResultProxy(const std::shared_ptr<W> &, const SPTLM_t &);
 
-   ShrdPtrBool_t fReadiness =
+   const ShrdPtrBool_t fReadiness =
       std::make_shared<bool>(false); ///< State registered also in the TLoopManager until the event loop is executed
    WPTLM_t fImplWeakPtr;             ///< Points to the TLoopManager at the root of the functional graph
-   SPT_t fObjPtr;                    ///< Shared pointer encapsulating the wrapped result
+   const SPT_t fObjPtr;              ///< Shared pointer encapsulating the wrapped result
 
    /// Triggers the event loop in the TLoopManager instance to which it's associated via the fImplWeakPtr
    void TriggerRun();