1 files changed, 2 insertions, 3 deletions
diff --git a/src/iso19111/coordinateoperation.cpp b/src/iso19111/coordinateoperation.cpp
index 4ae5f8a6..ec515cd7 100644
--- a/src/iso19111/coordinateoperation.cpp
+++ b/src/iso19111/coordinateoperation.cpp
@@ -6380,10 +6380,9 @@ void Conversion::_exportToPROJString(
 
         auto derivedGeographicCRS =
             dynamic_cast<const crs::DerivedGeographicCRS *>(horiz);
-        if (derivedGeographicCRS) {
-            auto baseGeodCRS = derivedGeographicCRS->baseCRS();
+        if (!formatter->getCRSExport() && derivedGeographicCRS) {
             formatter->setOmitProjLongLatIfPossible(true);
-            baseGeodCRS->_exportToPROJString(formatter);
+            derivedGeographicCRS->addAngularUnitConvertAndAxisSwap(formatter);
             formatter->setOmitProjLongLatIfPossible(false);
         }
     }