diff --git a/README.md b/README.md
index 4abb0d9..1cf05db 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@
 [ecs.hpp][ecs] is a header-only library. All you need to do is copy the headers files from `headers` directory into your project and include them:
 
 ```cpp
-#include "ecs_hpp/ecs.hpp"
+#include "ecs.hpp/ecs.hpp"
 ```
 
 Also, you can add the root repository directory to your [cmake](https://cmake.org) project:
diff --git a/headers/ecs_hpp/ecs.hpp b/headers/ecs.hpp/ecs.hpp
similarity index 100%
rename from headers/ecs_hpp/ecs.hpp
rename to headers/ecs.hpp/ecs.hpp
diff --git a/untests/ecs_tests.cpp b/untests/ecs_tests.cpp
index 6cf11d8..c32e5c5 100644
--- a/untests/ecs_tests.cpp
+++ b/untests/ecs_tests.cpp
@@ -7,7 +7,7 @@
 #define CATCH_CONFIG_FAST_COMPILE
 #include <catch2/catch.hpp>
 
-#include <ecs_hpp/ecs.hpp>
+#include <ecs.hpp/ecs.hpp>
 namespace ecs = ecs_hpp;
 
 namespace