diff --git a/CMakeLists.txt b/CMakeLists.txt
index 135e02f..97c7035 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,6 +7,7 @@ cmake_minimum_required(VERSION 2.6.0 FATAL_ERROR)
 
 option(ENABLE_SVG "Enable SVG support, for generating SVG background images and converting Type 3 fonts" ON)
 
+include_directories(${CMAKE_INSTALL_PREFIX}/include)
 include_directories(${CMAKE_SOURCE_DIR}/src)
 
 set(PDF2HTMLEX_VERSION "0.15.0")