diff --git a/inputs/lecture_27.tex b/inputs/lecture_27.tex
index b05f90d..d7ac9da 100644
--- a/inputs/lecture_27.tex
+++ b/inputs/lecture_27.tex
@@ -80,7 +80,7 @@ S^\cV(\cU) = \cV-\lim_n S^n(\cU) = \cV-\lim_n(\hat{n} + \cU) =
 \end{definition}
 
 \begin{theorem}
-    \yalabel{thm:unifrprox:helper2}
+    \label{thm:unifrprox:helper2}
     \begin{enumerate}[(1)]
         \item $\cU$ is uniformly recurrent in $\beta\N$
             iff $\cU$ belongs to a minimal\footnote{wrt.~$\subseteq $} (closed)