diff --git a/sumpy/codegen.py b/sumpy/codegen.py
index cf1f87d02917cb656c78e93d743395e9dace043f..8a5f7df43a06f992f6cf82d04006a3ebf54a9edd 100644
--- a/sumpy/codegen.py
+++ b/sumpy/codegen.py
@@ -33,6 +33,8 @@ import re
 from pymbolic.mapper import IdentityMapper, WalkMapper, CSECachingMapperMixin
 import pymbolic.primitives as prim
 
+from loopy.types import NumpyType
+
 from pytools import memoize_method
 
 from pymbolic.sympy_interface import (
@@ -160,22 +162,30 @@ def bessel_mangler(kernel, identifier, arg_dtypes):
         raise NotImplementedError("Only the PyOpenCLTarget is supported as of now")
 
     if identifier == "hank1_01":
-        if arg_dtypes[0].kind == "c":
+        if arg_dtypes[0].is_complex():
             identifier = "hank1_01_complex"
-            return (np.dtype(hank1_01_result_dtype),
-                    identifier, (np.dtype(np.complex128),))
+            return (NumpyType(np.dtype(hank1_01_result_dtype)),
+                    identifier, (
+                        NumpyType(np.dtype(np.complex128)),
+                        ))
         else:
-            return (np.dtype(hank1_01_result_dtype),
-                    identifier, (np.dtype(np.float64),))
+            return (NumpyType(np.dtype(hank1_01_result_dtype)),
+                    identifier, (
+                        NumpyType(np.dtype(np.float64)),
+                        ))
 
     elif identifier == "bessel_jv_two":
-        if arg_dtypes[1].kind == "c":
+        if arg_dtypes[1].is_complex():
             identifier = "bessel_jv_two_complex"
-            return (np.dtype(bessel_j_two_result_dtype),
-                    identifier, (np.dtype(np.int32), np.dtype(np.complex128),))
+            return (NumpyType(np.dtype(bessel_j_two_result_dtype)),
+                    identifier, (
+                        NumpyType(np.dtype(np.int32)),
+                        NumpyType(np.dtype(np.complex128)),))
         else:
-            return (np.dtype(bessel_j_two_result_dtype),
-                    identifier, (np.dtype(np.int32), np.dtype(np.float64),))
+            return (NumpyType(np.dtype(bessel_j_two_result_dtype)),
+                    identifier, (
+                        NumpyType(np.dtype(np.int32)),
+                        NumpyType(np.dtype(np.float64)),))
 
     else:
         return None
diff --git a/sumpy/version.py b/sumpy/version.py
index 4765172e125c186555ee5d5730cf03295fcd7d0f..04406292abfa5ab2d452b6c6e0a7ae210f166a26 100644
--- a/sumpy/version.py
+++ b/sumpy/version.py
@@ -25,4 +25,4 @@ VERSION = (2016, 1)
 VERSION_STATUS = "beta1"
 VERSION_TEXT = ".".join(str(x) for x in VERSION) + VERSION_STATUS
 
-KERNEL_VERSION = 2
+KERNEL_VERSION = 3