diff --git a/tex/latex/biblatex/biblatex.sty b/tex/latex/biblatex/biblatex.sty
index be736a55..2a88b29d 100644
--- a/tex/latex/biblatex/biblatex.sty
+++ b/tex/latex/biblatex/biblatex.sty
@@ -3828,7 +3828,6 @@
   \blx@tempcntb\blx@tempc\relax
   \advance\blx@tempcntb-\blx@tempcnta
   \ifnum\blx@tempcntb=1
-    \let\@psq\psq
     \expandafter\blx@seqrange@psq
   \else
      \iftoggle{blx@twosq}{%