diff --git a/CMakeLists.txt b/CMakeLists.txt
index 996cb1c3..f620f7af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,12 +39,12 @@ if(CUDA_FOUND)
   # add debugging to CUDA NVCC flags.  For NVidia's NSight tools.
   set(CUDA_NVCC_FLAGS_DEBUG ${CUDA_NVCC_FLAGS_DEBUG} "-G")
 
-  add_subdirectory (HW1)
-  add_subdirectory (HW2)
-  add_subdirectory (HW3)
-  add_subdirectory (HW4)
-  add_subdirectory (HW5)
-  add_subdirectory (HW6)
+  add_subdirectory (Problem\ Sets/Problem\ Set\ 1)
+  add_subdirectory (Problem\ Sets/Problem\ Set\ 2)
+  add_subdirectory (Problem\ Sets/Problem\ Set\ 3)
+  add_subdirectory (Problem\ Sets/Problem\ Set\ 4)
+  add_subdirectory (Problem\ Sets/Problem\ Set\ 5)
+  add_subdirectory (Problem\ Sets/Problem\ Set\ 6)
 else(CUDA_FOUND)
   message("CUDA is not installed on this system.")
 endif()