diff --git a/papers/hatra21/hatra21.pdf b/papers/hatra21/hatra21.pdf
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diff --git a/papers/hatra21/hatra21.tex b/papers/hatra21/hatra21.tex
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--- a/papers/hatra21/hatra21.tex
+++ b/papers/hatra21/hatra21.tex
@@ -325,7 +325,7 @@ Some issues raised by mixed-mode types:
   only with different flagging?
 
 \end{itemize}
-\emph{Related work}: this appears to be an undererxplored area.
+\emph{Related work}: this appears to be an under-explored area.
 
 \section{Conclusions}