diff --git a/test_conformance/extensions/cl_khr_command_buffer/cl_khr_command_buffer_mutable_dispatch/mutable_command_image_arguments.cpp b/test_conformance/extensions/cl_khr_command_buffer/cl_khr_command_buffer_mutable_dispatch/mutable_command_image_arguments.cpp
index 6fe31948..e287375b 100644
--- a/test_conformance/extensions/cl_khr_command_buffer/cl_khr_command_buffer_mutable_dispatch/mutable_command_image_arguments.cpp
+++ b/test_conformance/extensions/cl_khr_command_buffer/cl_khr_command_buffer_mutable_dispatch/mutable_command_image_arguments.cpp
@@ -70,9 +70,9 @@ struct MutableDispatchImage1DArguments : public BasicMutableCommandBufferTest
             {
                int offset = get_global_id(0);
 
-               int4 color = read_imagei( source, sampler, offset );
+               uint4 color = read_imageui( source, sampler, offset );
 
-               write_imagei( dest, offset, color );
+               write_imageui( dest, offset, color );
             })";
 
         cl_int error;
@@ -260,9 +260,9 @@ struct MutableDispatchImage2DArguments : public BasicMutableCommandBufferTest
                int x = get_global_id(0);
                int y = get_global_id(1);
 
-               int4 color = read_imagei( source, sampler, (int2) (x, y) );
+               uint4 color = read_imageui( source, sampler, (int2) (x, y) );
 
-               write_imagei( dest, (int2) (x, y), color );
+               write_imageui( dest, (int2) (x, y), color );
             })";
 
         cl_int error;