diff --git a/lib/LaTeXML/Engine/LaTeX.pool.ltxml b/lib/LaTeXML/Engine/LaTeX.pool.ltxml
index 7841851bc..0eae2e7b0 100644
--- a/lib/LaTeXML/Engine/LaTeX.pool.ltxml
+++ b/lib/LaTeXML/Engine/LaTeX.pool.ltxml
@@ -1243,6 +1243,7 @@ DefMacroI('\maketitle', undef,
     . '\global\let\title\relax'
     . '\global\let\author\relax'
     . '\global\let\date\relax'
+    . '\global\let\keywords\relax'
     . '\global\let\and\relax', locked => 1);
 
 DefMacro('\@thanks', '\@empty');