diff --git a/loopy/codegen/expression.py b/loopy/codegen/expression.py
index ee35ba46796b5a71be1b32e7f21f4e13c3ec73bc..cb8839fa6b6fed255cf897ae6df984c85954aa94 100644
--- a/loopy/codegen/expression.py
+++ b/loopy/codegen/expression.py
@@ -7,6 +7,8 @@ from pymbolic.mapper.stringifier import (PREC_NONE, PREC_CALL, PREC_PRODUCT,
         PREC_POWER)
 from pymbolic.mapper import CombineMapper
 import islpy as isl
+import pyopencl as cl
+import pyopencl.array
 
 # {{{ type inference
 
@@ -269,6 +271,8 @@ class LoopyCCodeMapper(RecursiveMapper):
 
                 if arg.dtype == np.float32:
                     return base_access+".x"
+                if arg.dtype in cl.array.vec.type_to_scalar_and_count:
+                    return base_access
                 elif arg.dtype == np.float64:
                     return "as_double(%s.xy)" % base_access
                 else:
diff --git a/loopy/compiled.py b/loopy/compiled.py
index c8337f8b705b226a35fb026f896d60a53f0b548a..563c676d5be9faea97ed89328ff23d1001386727 100644
--- a/loopy/compiled.py
+++ b/loopy/compiled.py
@@ -335,7 +335,7 @@ def make_ref_args(kernel, queue, parameters,
                 fill_rand(storage_array)
                 if isinstance(arg, ImageArg):
                     # must be contiguous
-                    ref_args[arg.name] = cl.image_from_array(queue.context, ary.get(), 1)
+                    ref_args[arg.name] = cl.image_from_array(queue.context, ary.get())
                 else:
                     ref_args[arg.name] = ary
 
@@ -388,7 +388,7 @@ def make_args(queue, kernel, arg_descriptors, parameters,
 
             # must be contiguous
             args[arg.name] = cl.image_from_array(
-                    queue.context, arg_desc.ref_array.get(), 1)
+                    queue.context, arg_desc.ref_array.get())
 
         elif isinstance(arg, GlobalArg):
             assert arg.offset == 0