1 files changed, 11 insertions, 0 deletions
diff --git a/include/proj/internal/coordinateoperation_internal.hpp b/include/proj/internal/coordinateoperation_internal.hpp
index 207c20b4..7ae2cd78 100644
--- a/include/proj/internal/coordinateoperation_internal.hpp
+++ b/include/proj/internal/coordinateoperation_internal.hpp
@@ -149,6 +149,10 @@ class InverseConversion : public Conversion, public InverseCoordinateOperation {
         Conversion::_exportToWKT(formatter);
     }
 
+    void _exportToJSON(io::JSONFormatter *formatter) const override {
+        Conversion::_exportToJSON(formatter);
+    }
+
     void
     _exportToPROJString(io::PROJStringFormatter *formatter) const override {
         InverseCoordinateOperation::_exportToPROJString(formatter);
@@ -200,6 +204,10 @@ class InverseTransformation : public Transformation,
         return InverseCoordinateOperation::_exportToPROJString(formatter);
     }
 
+    void _exportToJSON(io::JSONFormatter *formatter) const override {
+        Transformation::_exportToJSON(formatter);
+    }
+
     bool
     _isEquivalentTo(const util::IComparable *other,
                     util::IComparable::Criterion criterion =
@@ -270,6 +278,9 @@ class PROJBasedOperation : public SingleOperation {
     void _exportToPROJString(io::PROJStringFormatter *formatter)
         const override; // throw(FormattingException)
 
+    void _exportToJSON(io::JSONFormatter *formatter)
+        const override; // throw(FormattingException)
+
     CoordinateOperationNNPtr _shallowClone() const override;
 
     INLINED_MAKE_SHARED