diff --git a/python/lammps.py b/python/lammps.py
index ffcdbac456..feda10802e 100644
--- a/python/lammps.py
+++ b/python/lammps.py
@@ -204,6 +204,12 @@ class lammps(object):
     self.lib.lammps_neighlist_element_neighbors.argtypes = [c_void_p, c_int, c_int, POINTER(c_int), POINTER(c_int), POINTER(POINTER(c_int))]
     self.lib.lammps_neighlist_element_neighbors.restype  = None
 
+    self.lib.lammps_has_error.argtypes = [v_void_p]
+    self.lib.lammps_has_error.restype = c_bool
+
+    self.lib.lammps_get_last_error_message.argtypes = [c_void_p, c_char_p, c_int]
+    self.lib.lammps_get_last_error_message.restype = c_int
+
     # if no ptr provided, create an instance of LAMMPS
     #   don't know how to pass an MPI communicator from PyPar
     #   but we can pass an MPI communicator from mpi4py v2.0.0 and later