diff --git a/cpp/tensorrt_llm/kernels/cutlass_kernels/CMakeLists.txt b/cpp/tensorrt_llm/kernels/cutlass_kernels/CMakeLists.txt
index 3c3574c2d5..bb8bc9ef21 100644
--- a/cpp/tensorrt_llm/kernels/cutlass_kernels/CMakeLists.txt
+++ b/cpp/tensorrt_llm/kernels/cutlass_kernels/CMakeLists.txt
@@ -138,7 +138,8 @@ function(add_instantiations library base_dir)
     endif()
   endmacro()
 
-  glob_src_create_target(80 "80;86;90;100f;120f")
+  glob_src_create_target(80 "80;86;90;100f;120f") # we use 80 kernels to support
+                                                  # fp16 of all archs
   glob_src_create_target(90 90)
   glob_src_create_target(100 100f)
   glob_src_create_target(103 103)