diff --git a/src/cli.c b/src/cli.c
index b7c56efb..6e66f77e 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -630,6 +630,8 @@ void print_help(void)
     "      --mtt-depth-intra-chroma : Depth of mtt for chroma dual tree in\n"
     "                                      intra slices 0..3.[0]\n"
     "      --mtt-depth-inter      : Depth of mtt for inter slices 0..3.[0]\n"
+    "                              All MTTs are currently experimental and\n"
+    "                              require disabling some avx2 optimizations.\n"
     "      --max-bt-size          : maximum size for a CU resulting from\n"
     "                                   a bt split. A singular value shared for all\n"
     "                                   or a list of three values for the different\n"
@@ -694,6 +696,8 @@ void print_help(void)
     "      --(no-)lfnst           : Enable low frequency non-separable transform.\n"
     "                                 [disabled]\n"
     "      --(no-)isp             : Enable intra sub partitions. [disabled]\n"
+    "                               Experimental, requires disabling some avx2\n"
+    "                               optimizations.\n"
     "      --mts <string>         : Multiple Transform Selection [off].\n"
     "                               (Currently only implemented for intra\n"
     "                               and has effect only when rd >= 2)\n"