diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst
--- a/clang/docs/UsersManual.rst
+++ b/clang/docs/UsersManual.rst
@@ -3716,7 +3716,6 @@
       /Zc:trigraphs           Enable trigraphs
       /Zc:twoPhase-           Disable two-phase name lookup in templates
       /Zc:twoPhase            Enable two-phase name lookup in templates
-      /Zd                     Emit debug line number tables only
       /Zi                     Alias for /Z7. Does not produce PDBs.
       /Zl                     Don't mention any default libraries in the object file
       /Zp                     Set the default maximum struct packing alignment to 1