diff --git a/docs/ClangCommandLineReference.rst b/docs/ClangCommandLineReference.rst
index 0e055c16802a52d4aee69713de3960cd3ae24eb4..4a65f7ff243f136cc2c5a46cc3398d5518ef40aa 100644
--- a/docs/ClangCommandLineReference.rst
+++ b/docs/ClangCommandLineReference.rst
@@ -2165,6 +2165,8 @@ X86
 
 .. option:: -mclflushopt, -mno-clflushopt
 
+.. option:: -mclwb, -mno-clwb
+
 .. option:: -mcx16, -mno-cx16
 
 .. option:: -mf16c, -mno-f16c
@@ -2181,6 +2183,8 @@ X86
 
 .. option:: -mmmx, -mno-mmx
 
+.. option:: -mmovbe, -mno-movbe
+
 .. option:: -mmpx, -mno-mpx
 
 .. option:: -mmwaitx, -mno-mwaitx