diff --git a/include/eigenpy/geometry-conversion.hpp b/include/eigenpy/geometry-conversion.hpp
index de6f79882586f4bc6ffcbe0a80e0e7e68cebd21d..7a2001b026b543a12503e3692b1f787a004da624 100644
--- a/include/eigenpy/geometry-conversion.hpp
+++ b/include/eigenpy/geometry-conversion.hpp
@@ -1,6 +1,6 @@
 /*
  * Copyright 2014-2019, CNRS
- * Copyright 2018-2019, INRIA
+ * Copyright 2018-2021, INRIA
  */
 
 #ifndef __eigenpy_geometry_conversion_hpp__
@@ -27,11 +27,11 @@ namespace eigenpy
     static void expose()
     {
       bp::def("toEulerAngles",&EulerAnglesConvertor::toEulerAngles,
-              bp::args("mat (dim 3x3)","a0","a1","a2"),
+              bp::args("rotation_matrix","a0","a1","a2"),
               "It returns the Euler-angles of the rotation matrix mat using the convention defined by the triplet (a0,a1,a2).");
       
       bp::def("fromEulerAngles",&EulerAnglesConvertor::fromEulerAngles,
-              bp::args("ea (vector of Euler angles)","a0","a1","a2"),
+              bp::args("euler_angles","a0","a1","a2"),
               "It returns the rotation matrix associated to the Euler angles using the convention defined by the triplet (a0,a1,a2).");
     }