diff --git a/swig/gpstk.i b/swig/gpstk.i
index 9ae86c22b..acdf09732 100644
--- a/swig/gpstk.i
+++ b/swig/gpstk.i
@@ -161,6 +161,7 @@ using namespace gpstk;
 // =============================================================
 // Renames on a few commonly used operators
 %rename (toEngEphemeris) *::operator EngEphemeris() const;
+%rename (toGPSEphemeris) *::operator GPSEphemeris() const;
 %rename (toGalEphemeris) *::operator GalEphemeris() const;
 %rename (toGloEphemeris) *::operator GloEphemeris() const;
 %rename (toAlmOrbit) *::operator AlmOrbit() const;