diff --git a/lib/includes/CMakeLists.txt b/lib/includes/CMakeLists.txt
index 3d77d6c..b4720c6 100644
--- a/lib/includes/CMakeLists.txt
+++ b/lib/includes/CMakeLists.txt
@@ -1,7 +1,5 @@
-if(ENABLE_ASIO_LIB)
-  install(FILES
-      nghttp2/asio_http2.h
-      nghttp2/asio_http2_client.h
-      nghttp2/asio_http2_server.h
-    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/nghttp2")
-endif()
+install(FILES
+    nghttp2/asio_http2.h
+    nghttp2/asio_http2_client.h
+    nghttp2/asio_http2_server.h
+  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/nghttp2")