diff --git a/linear_algebra_matrix/hafnian.md b/linear_algebra_matrix/hafnian.md
index d9a7af1d..c295cb5f 100644
--- a/linear_algebra_matrix/hafnian.md
+++ b/linear_algebra_matrix/hafnian.md
@@ -13,4 +13,3 @@ documentation_of: ./hafnian.hpp
 
 - [1] A. Björklund, "Counting Perfect Matchings as Fast as Ryser,
   Proc. of 23rd ACM-SIAM symposium on Discrete Algorithms, pp.914–921, 2012.
-
diff --git a/linear_algebra_matrix/linalg_bitset.md b/linear_algebra_matrix/linalg_bitset.md
index dc3ab547..e8e9d599 100644
--- a/linear_algebra_matrix/linalg_bitset.md
+++ b/linear_algebra_matrix/linalg_bitset.md
@@ -1,5 +1,5 @@
 ---
-title: Linear algebra on $\mathbb{F}_{2}$ using std::bitset ($\mathbb{F}_{2}$ 線形代数)
+title: Linear algebra on $\mathbb{F}_{2}$ using std::bitset (std::bitset を使用した $\mathbb{F}_{2}$ 線形代数)
 documentation_of: ./linalg_bitset.hpp
 ---