diff --git a/loopy/target/opencl.py b/loopy/target/opencl.py
index e0669661403cd9b77e51908f9c1ee3f3251688db..5ebcc98c897d3117de5f30e4077992e05118fd4e 100644
--- a/loopy/target/opencl.py
+++ b/loopy/target/opencl.py
@@ -553,8 +553,10 @@ class OpenCLCASTBuilder(CASTBuilder):
                 cast_str = "(%s %s *) " % (var_kind, ctype)
 
             return Block([
-                POD(self, NumpyType(lhs_dtype.dtype), old_val_var),
-                POD(self, NumpyType(lhs_dtype.dtype), new_val_var),
+                POD(self, NumpyType(lhs_dtype.dtype, target=self.target),
+                    old_val_var),
+                POD(self, NumpyType(lhs_dtype.dtype, target=self.target),
+                    new_val_var),
                 DoWhile(
                     "%(func_name)s("
                     "%(cast_str)s&(%(lhs_expr)s), "