diff --git a/mkessler-hypersetup.sty b/mkessler-hypersetup.sty
index cf581a9..e6dd56d 100644
--- a/mkessler-hypersetup.sty
+++ b/mkessler-hypersetup.sty
@@ -2,9 +2,10 @@
 \ProvidesPackage{mkessler-hypersetup}[2021-09-06 - Package for setting up hyperref, cleveref and some default hyperref colors]
 %%%%%%%%%%%%%%%%%%
 
-\newif\ifenglish\englishtrue
-\DeclareOption{german}{\englishfalse}
-\DeclareOption{english}{\englishtrue}
+
+\newif\ifmkessler@hypersetup@cleveref\mkessler@hypersetup@clevereffalse
+\DeclareOption{cleveref}{\mkessler@hypersetup@clevereftrue}
+
 \DeclareOption*{\PackageWarning{mkessler-hypersetup}{Unknown '\CurrentOption'}}
 \ProcessOptions\relax
 
@@ -14,7 +15,9 @@
 
 \def\mkessler@hypersetup@exec{
     \RequirePackage{hyperref} % Hyperlinks
-    \RequirePackage{cleveref} % Better referencing
+    \ifmkessler@hypersetup@cleveref
+        \RequirePackage{cleveref} % Better referencing
+    \fi
     \hypersetup{colorlinks, citecolor=violet, urlcolor=blue!80!black, linkcolor=red!50!black, pdfauthor=\@author, pdftitle=\ifdef{\@course}{\@course}{\@title}}
 }
 
diff --git a/todo.md b/todo.md
index dd58b51..aa97858 100644
--- a/todo.md
+++ b/todo.md
@@ -7,3 +7,12 @@
 
 ## castel-figures
     - Add option for include path of inkscape figures
+
+
+
+### Option clashes
+There is an option clash (since TexLive 2018) between thmtools, IEEEtrantools and cleveref.
+ To (temporarily) fix this, the hypersetup package provides cleveref only as an option 'cleveref'. Only load this if you are not using both of the abve
+
+See also
+https://tex.stackexchange.com/questions/515560/incompatibility-of-thmtools-ieeetrantools-and-cleveref-in-tex-live-2018-2019