Index: doc/next-tutorial/next-tutorial.txt
===================================================================
diff -u -r18b6516228b6bdc151f98734b6a3027bb1eff6fb -ra19966164e915b426ffe12e34170a7be9a9e77ee
--- doc/next-tutorial/next-tutorial.txt	(.../next-tutorial.txt)	(revision 18b6516228b6bdc151f98734b6a3027bb1eff6fb)
+++ doc/next-tutorial/next-tutorial.txt	(.../next-tutorial.txt)	(revision a19966164e915b426ffe12e34170a7be9a9e77ee)
@@ -2080,7 +2080,7 @@
 class +::D+. When the parameter option +substdefault+ is used
 default, all substitution kinds of Tcl are active: command, variable, and
 backslash substitution. +substdefault+ can be
-parametrized to include or to exclude any combination of substitution
+parameterized to include or to exclude any combination of substitution
 kinds by providing a bit mask:
 
 - +substdefault=0b111+: all substitutions active (default)