diff --git a/CMakeLists.txt b/CMakeLists.txt
index d8f0b913..be070e30 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -106,7 +106,7 @@ if (WIN32)
 endif (WIN32)
 
 # Set the acceleration library
-# set(GPU_MODE CUDA CACHE STRING "Select the acceleration GPU library or CPU otherwise.")
+set(GPU_MODE CUDA CACHE STRING "Select the acceleration GPU library or CPU otherwise.")
 # set_property(CACHE GPU_MODE PROPERTY STRINGS CPU_ONLY)
 
 # # Test for CUDA or OpenCL