diff --git a/luku01.tex b/luku01.tex
index 637612c..bb8a32b 100644
--- a/luku01.tex
+++ b/luku01.tex
@@ -14,7 +14,7 @@ how to invent an efficient algorithm.
 
 Theoretical knowledge of algorithms
 is very important to competitive programmers.
-Typically, a solution for a problem is
+Typically, a solution to a problem is
 a combination of well-known techniques and
 new insights.
 The techniques that appear in competitive programming