--- ocltoys/smallptgpu/smallptgpu.cpp.orig	2017-09-28 21:30:58.069981766 +0000
+++ ocltoys/smallptgpu/smallptgpu.cpp	2017-09-28 21:32:57.593313670 +0000
@@ -76,9 +76,9 @@
 		boost::program_options::options_description opts("SmallPTGPU options");
 
 		opts.add_options()
-			("kernel,k", boost::program_options::value<std::string>()->default_value("preprocessed_rendering_kernel.cl"),
+			("kernel,k", boost::program_options::value<std::string>()->default_value("/usr/local/share/ocltoys/smallptgpu/preprocessed_rendering_kernel.cl"),
 				"OpenCL kernel file name")
-			("scene,n", boost::program_options::value<std::string>()->default_value("scenes/cornell.scn"),
+			("scene,n", boost::program_options::value<std::string>()->default_value("/usr/local/share/ocltoys/smallptgpu/scenes/cornell.scn"),
 				"Filename of the scene to render")
 			("workgroupsize,z", boost::program_options::value<size_t>(), "OpenCL workgroup size");