diff --git i/CMakeLists.txt w/CMakeLists.txt
index 0ee77dba..767e19df 100644
--- i/CMakeLists.txt
+++ w/CMakeLists.txt
@@ -635,7 +635,7 @@ if(ENABLE_SHARED)
     )
 endif()
 
-SET(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/include)
+SET(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_FULL_INCLUDEDIR})
 
 INSTALL( FILES ${libringclient_LIB_HDRS} ${libringclient_extra_LIB_HDRS}
   DESTINATION ${INCLUDE_INSTALL_DIR}/libringclient