diff --git a/llvm/docs/CommandGuide/tblgen.rst b/llvm/docs/CommandGuide/tblgen.rst
index c23af5e..55b5429 100644
--- a/llvm/docs/CommandGuide/tblgen.rst
+++ b/llvm/docs/CommandGuide/tblgen.rst
@@ -57,6 +57,11 @@
 
  Print all records to standard output (default).
 
+.. option:: -dump-json
+
+ Print a JSON representation of all records, suitable for further
+ automated processing.
+
 .. option:: -print-enums
 
  Print enumeration values for a class.