diff --git a/HsH-classes.dtx b/HsH-classes.dtx
index a5196abf58be228ab08635725e87e4d6e4e73ed6..3ad032e1fb14bdd83f46c6a6b88f921a9ebbf42d 100644
--- a/HsH-classes.dtx
+++ b/HsH-classes.dtx
@@ -165,9 +165,9 @@
   \RequirePackage{todonotes}
   \setlength{\marginparwidth}{5.2cm}
 \else
-    \newcommand{\listoftodos}[1][]{}
-    \newcommand{\todo}[2][]{}
-    \newcommand{\missingfigure}[2][]{}
+    \newcommand{\listoftodos}[1]{}
+    \newcommand{\todo}[2]{}
+    \newcommand{\missingfigure}[2]{}
 \fi
 %
 % foreach loops