diff --git a/clang/docs/ClangCommandLineReference.rst b/clang/docs/ClangCommandLineReference.rst
--- a/clang/docs/ClangCommandLineReference.rst
+++ b/clang/docs/ClangCommandLineReference.rst
@@ -2613,9 +2613,9 @@
 
 The visibility for defintiions without an explicit DLL export class \[-fvisibility-from-dllstorageclass\]
 
-.. option:: -fvisibility=<arg>
+.. option:: -fvisibility=[default|hidden]
 
-Set the default symbol visibility for all global declarations
+Set the default symbol visibility for all global declarations.
 
 .. option:: -fwasm-exceptions