diff --git a/main/style/counters.tex b/main/style/counters.tex
index 69d0fb5..1a76b2f 100644
--- a/main/style/counters.tex
+++ b/main/style/counters.tex
@@ -115,7 +115,7 @@ overlay={\node[overlaystyle,draw=red!75!black,fill=red!75!black] at (frame.north
 \newcommand{\shortdef}{\bg{blue}{D \usenumberArabic{definitions}:}}
 \newcommand{\short}{\bg{red}{F \usenumberArabic{formulas}:}}
 \newcommand{\shortlemma}{\bg{Aquamarine}{L \usenumberArabic{lemmas}:}}
-\newcommand{\shorttheorem}{\bg{ForestGreen}{\translate{T}{\StrMid{1}{1}} \usenumberArabic{theorems}:}}
+\newcommand{\shorttheorem}{\bg{ForestGreen}{\translate{T}{\StrMid{\theoremde}{1}{1}} \usenumberArabic{theorems}:}}
 \newcommand{\shortaxiom}{\bg{JungleGreen}{A \usenumberArabic{axioms}:}}
 \newcommand{\shortcorollary}{\bg{teal}{\translate{C}{K} \usenumberArabic{corollaries}:}}
 \newcommand{\shortfact}{\bg{SeaGreen}{F \usenumberArabic{facts}:}}