Typo: thsi -> this.  Closes SF bug #521450.
diff --git a/Doc/ref/ref7.tex b/Doc/ref/ref7.tex
index 3c43488..f22be71 100644
--- a/Doc/ref/ref7.tex
+++ b/Doc/ref/ref7.tex
@@ -280,7 +280,7 @@
 executes a \keyword{return} or \keyword{break} statement, the saved
 exception is lost.  A \keyword{continue} statement is illegal in the
 \keyword{finally} clause.  (The reason is a problem with the current
-implementation -- thsi restriction may be lifted in the future).  The
+implementation -- this restriction may be lifted in the future).  The
 exception information is not available to the program during execution of
 the \keyword{finally} clause.
 \kwindex{finally}