diff --git a/numba_dpex/dpctl_iface/_helpers.py b/numba_dpex/dpctl_iface/_helpers.py
index be8354b459..f46915eaf0 100644
--- a/numba_dpex/dpctl_iface/_helpers.py
+++ b/numba_dpex/dpctl_iface/_helpers.py
@@ -14,25 +14,26 @@ def numba_type_to_dpctl_typenum(context, ty):
     """
 
     if dpctl_sem_version >= (0, 17, 0):
-        # FIXME change to imports from a dpctl enum/class rather than
-        # hard coding these numbers.
+        from dpctl._sycl_queue import kernel_arg_type as kargty
 
         if ty == types.boolean:
-            return context.get_constant(types.int32, 1)
+            return context.get_constant(types.int32, kargty.dpctl_uint8.value)
         elif ty == types.int32 or isinstance(ty, types.scalars.IntegerLiteral):
-            return context.get_constant(types.int32, 4)
+            return context.get_constant(types.int32, kargty.dpctl_int32.value)
         elif ty == types.uint32:
-            return context.get_constant(types.int32, 5)
+            return context.get_constant(types.int32, kargty.dpctl_uint32.value)
         elif ty == types.int64:
-            return context.get_constant(types.int32, 6)
+            return context.get_constant(types.int32, kargty.dpctl_int64.value)
         elif ty == types.uint64:
-            return context.get_constant(types.int32, 7)
+            return context.get_constant(types.int32, kargty.dpctl_uint64.value)
         elif ty == types.float32:
-            return context.get_constant(types.int32, 8)
+            return context.get_constant(types.int32, kargty.dpctl_float32.value)
         elif ty == types.float64:
-            return context.get_constant(types.int32, 9)
+            return context.get_constant(types.int32, kargty.dpctl_float64.value)
         elif ty == types.voidptr or isinstance(ty, types.CPointer):
-            return context.get_constant(types.int32, 10)
+            return context.get_constant(
+                types.int32, kargty.dpctl_void_ptr.value
+            )
         else:
             raise NotImplementedError
     else: