diff --git a/source/pysph/sph/funcs/density_funcs.pyx b/source/pysph/sph/funcs/density_funcs.pyx
index fe657a5..45a109c 100644
--- a/source/pysph/sph/funcs/density_funcs.pyx
+++ b/source/pysph/sph/funcs/density_funcs.pyx
@@ -75,7 +75,7 @@ cdef class SPHRho(CSPHFunctionParticle):
     def _set_extra_cl_args(self):
         pass
 
-    def cl_eval(self, object queue, object context, object kernel):
+    def cl_eval(self, object queue, object context):
 
         self.set_cl_kernel_args()