diff --git a/backtracking/magic_sequence.cpp b/backtracking/magic_sequence.cpp
index 7e8a7b457..68765b28d 100644
--- a/backtracking/magic_sequence.cpp
+++ b/backtracking/magic_sequence.cpp
@@ -28,7 +28,7 @@
 namespace backtracking {
 
 /**
- * @namespace
+ * @namespace magic_sequence
  * @brief Definition and solve magic sequence problem
  */
 namespace magic_sequence {