diff --git a/luku10.tex b/luku10.tex
index 0b81748..35136bf 100644
--- a/luku10.tex
+++ b/luku10.tex
@@ -189,7 +189,7 @@ removes the $k$ last bits from the number.
 For example, $14 < < 2 = 56$,
 because $14$ equals 1110
 and $56$ equals 111000.
-Similarily, $49 > > 3 = 6$,
+Similarly, $49 > > 3 = 6$,
 because $49$ equals 110001
 and $6$ equals 110.