diff --git a/modules/img/base/pymod/export_data.cc b/modules/img/base/pymod/export_data.cc
index 886613d86d079999d077541ad14de6aa3917e8b3..24f72acb373b3b49e081f40a0c8764eac49d51d2 100644
--- a/modules/img/base/pymod/export_data.cc
+++ b/modules/img/base/pymod/export_data.cc
@@ -70,7 +70,7 @@ void export_Data()
     .def("GetSize",&ConstData::GetSize)
     .def("IsSpatial",&ConstData::IsSpatial)
     .add_property("is_spatial", &ConstData::IsSpatial)
-    .add_property("is_frequency", &ConstData::IsSpatial)
+    .add_property("is_frequency", &ConstData::IsFrequency)
     .add_property("size", &ConstData::GetSize)
     .add_property("domain", &ConstData::GetDomain)
     .add_property("extent", &ConstData::GetExtent)