diff --git a/lib/cpp/CMakeLists.txt b/lib/cpp/CMakeLists.txt
index c7fe00c4..99a2eb28 100644
--- a/lib/cpp/CMakeLists.txt
+++ b/lib/cpp/CMakeLists.txt
@@ -69,4 +69,4 @@ if(WITH_STATIC_LIBRARIES)
 	)
 endif()
 
-install(FILES mosquittopp.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+install(FILES ../../mosquittopp.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")