diff --git a/GeoModelIO/GeoModelRead/src/ReadGeoModel.cpp b/GeoModelIO/GeoModelRead/src/ReadGeoModel.cpp
index cfaa7c8ea354199a0936dd8322e19955c8dedf75..ee23a88a1a0d55f5f08f0a715633c8418ab6a302 100644
--- a/GeoModelIO/GeoModelRead/src/ReadGeoModel.cpp
+++ b/GeoModelIO/GeoModelRead/src/ReadGeoModel.cpp
@@ -1851,7 +1851,6 @@ GeoShape* ReadGeoModel::buildShape(const unsigned int shapeId, type_shapes_boole
 	}
     else if (type == "TwistedTrap") {
         // shape constructor parameters
-        const GeoTwistedTrap* shapeIn = dynamic_cast<const GeoTwistedTrap*>(shape);
         double PhiTwist = 0;
         double ZHalfLength = 0.;
         double Theta = 0.;