diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex
index dc4ca2e..dc29b46 100644
--- a/Doc/lib/libre.tex
+++ b/Doc/lib/libre.tex
@@ -822,7 +822,7 @@
   \lineii{\code{\%o}}
          {\regexp{0[0-7]*}}
   \lineii{\code{\%s}}
-         {\regexp{[\textasciicircum\e s]+}}
+         {\regexp{\e S+}}
   \lineii{\code{\%u}}
          {\regexp{\e d+}}
   \lineii{\code{\%x}, \code{\%X}}