diff --git a/src/ca-detail/ca-storage.hpp b/src/ca-detail/ca-storage.hpp
index e18a5bc..e35af1a 100644
--- a/src/ca-detail/ca-storage.hpp
+++ b/src/ca-detail/ca-storage.hpp
@@ -21,7 +21,7 @@
 #ifndef NDNCERT_CA_STORAGE_HPP
 #define NDNCERT_CA_STORAGE_HPP
 
-#include "ca-state.hpp"
+#include "ca-detail/ca-state.hpp"
 
 namespace ndn {
 namespace ndncert {