diff --git a/src/detail/error-encoder.cpp b/src/detail/error-encoder.cpp
index 84b7866..72b85c5 100644
--- a/src/detail/error-encoder.cpp
+++ b/src/detail/error-encoder.cpp
@@ -18,7 +18,7 @@
  * See AUTHORS.md for complete list of ndncert authors and contributors.
  */
 
-#include "error-encoder.hpp"
+#include "detail/error-encoder.hpp"
 
 namespace ndn {
 namespace ndncert {