diff --git a/src/V3Const.cpp b/src/V3Const.cpp
index 297cfb1f8..d3a95ae7b 100644
--- a/src/V3Const.cpp
+++ b/src/V3Const.cpp
@@ -1884,7 +1884,7 @@ private:
         AstNodeExpr* const ap = lhsp->lhsp()->unlinkFrBack();
         AstNodeExpr* const bp = lhsp->rhsp()->unlinkFrBack();
         AstNodeBiop* const shift1p = nodep;
-        AstNodeBiop* const shift2p = nodep->cloneTreePure(true);
+        AstNodeBiop* const shift2p = nodep->cloneTree(true);
         shift1p->lhsp(ap);
         shift1p->rhsp(shiftp->cloneTreePure(true));
         shift2p->lhsp(bp);
diff --git a/src/V3Tristate.cpp b/src/V3Tristate.cpp
index f13c1dfa0..00e92e6e9 100644
--- a/src/V3Tristate.cpp
+++ b/src/V3Tristate.cpp
@@ -518,14 +518,14 @@ class TristateVisitor final : public TristateBaseVisitor {
 
             // Unlink lhsp before copying to save unnecessary copy of lhsp
             AstNodeExpr* const lhsp = extendp->lhsp()->unlinkFrBack();
-            AstExtend* const enExtendp = extendp->cloneTreePure(false);
+            AstExtend* const enExtendp = extendp->cloneTree(false);
             extendp->lhsp(lhsp);
             AstNodeExpr* const enLhsp = getEnExprBasedOnOriginalp(lhsp);
             enExtendp->lhsp(new AstNot{enLhsp->fileline(), enLhsp});
             return new AstNot{enExtendp->fileline(), enExtendp};
         } else if (AstSel* const selp = VN_CAST(nodep, Sel)) {
             AstNodeExpr* const fromp = selp->fromp()->unlinkFrBack();
-            AstSel* const enSelp = selp->cloneTreePure(false);
+            AstSel* const enSelp = selp->cloneTree(false);
             selp->fromp(fromp);
             AstNodeExpr* const enFromp = getEnExprBasedOnOriginalp(fromp);
             enSelp->fromp(enFromp);