diff --git a/eo/src/pyeo/abstract1.cpp b/eo/src/pyeo/abstract1.cpp
index 8a443a04..e8e84777 100644
--- a/eo/src/pyeo/abstract1.cpp
+++ b/eo/src/pyeo/abstract1.cpp
@@ -39,7 +39,8 @@ void abstract1()
     
     class_<eoSGATransform<PyEO>, bases<eoTransform<PyEO> > >("eoSGATransform",
 	    init< eoQuadOp<PyEO>&, double,
-		  eoMonOp<PyEO>&, double>());
+		  eoMonOp<PyEO>&, double>())
+	.def("__call__", &eoSGATransform<PyEO>::operator());
     
     def_abstract_functor<eoPopEvalFunc<PyEO> >("eoPopEvalFunc");
 }