diff --git a/structure/union-find/persistent-union-find.hpp b/structure/union-find/persistent-union-find.hpp
index 68697e43..ebf10492 100644
--- a/structure/union-find/persistent-union-find.hpp
+++ b/structure/union-find/persistent-union-find.hpp
@@ -1,3 +1,5 @@
+#include "../others/persistent-array.hpp"
+
 /*
  * @brief Persistent-Union-Find(永続Union-Find)
  */
diff --git a/test/verify/yosupo-persistent-unionfind.test.cpp b/test/verify/yosupo-persistent-unionfind.test.cpp
index 32ff585c..aaf59297 100644
--- a/test/verify/yosupo-persistent-unionfind.test.cpp
+++ b/test/verify/yosupo-persistent-unionfind.test.cpp
@@ -2,7 +2,6 @@
 
 #include "../../template/template.hpp"
 
-#include "../../structure/others/persistent-array.hpp"
 #include "../../structure/union-find/persistent-union-find.hpp"
 
 int main() {