diff --git a/d5/d88/md__d_i_r_e_c_t_o_r_y.html b/d5/d88/md__d_i_r_e_c_t_o_r_y.html
index fa22bd95a..5a8707ce2 100644
--- a/d5/d88/md__d_i_r_e_c_t_o_r_y.html
+++ b/d5/d88/md__d_i_r_e_c_t_o_r_y.html
@@ -556,6 +556,7 @@ Strings</h1>
 <ul>
 <li><a href="https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/strings/boyer_moore.cpp" target="_blank">Boyer Moore</a></li>
 <li><a href="https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/strings/brute_force_string_searching.cpp" target="_blank">Brute Force String Searching</a></li>
+<li><a href="https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/strings/duval.cpp" target="_blank">Duval</a></li>
 <li><a href="https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/strings/horspool.cpp" target="_blank">Horspool</a></li>
 <li><a href="https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/strings/knuth_morris_pratt.cpp" target="_blank">Knuth Morris Pratt</a></li>
 <li><a href="https://github.com/TheAlgorithms/C-Plus-Plus/blob/HEAD/strings/manacher_algorithm.cpp" target="_blank">Manacher Algorithm</a></li>