diff -r d666f11ca2d4 -r 51e70b7bc315 doc-src/TutorialI/Misc/document/Option2.tex
--- a/doc-src/TutorialI/Misc/document/Option2.tex	Fri May 18 17:18:43 2001 +0200
+++ b/doc-src/TutorialI/Misc/document/Option2.tex	Sat May 19 12:19:23 2001 +0200
@@ -9,7 +9,7 @@
 \isacommand{datatype}\ {\isacharprime}a\ option\ {\isacharequal}\ None\ {\isacharbar}\ Some\ {\isacharprime}a%
 \begin{isamarkuptext}%
 \noindent
-Frequently one needs to add a distiguished element to some existing type.
+Frequently one needs to add a distinguished element to some existing type.
 For example, type \isa{t\ option} can model the result of a computation that
 may either terminate with an error (represented by \isa{None}) or return
 some value \isa{v} (represented by \isa{Some\ v}).