diff --git a/toonz/sources/CMakeLists.txt b/toonz/sources/CMakeLists.txt
index a1749d9..c8e6e2d 100644
--- a/toonz/sources/CMakeLists.txt
+++ b/toonz/sources/CMakeLists.txt
@@ -184,6 +184,8 @@ else()
     message("LZO:" ${LZO_INCLUDE_DIR})
 endif()
 
+include_directories(BEFORE ${TIFF_INCLUDE_DIR})
+
 find_path(BOOST_ROOT include/boost boost HINTS ${THIRDPARTY_LIBS_HINTS} PATH_SUFFIXES boost155/1.55.0_1 boost/boost_1_55_0/)
 find_package(Boost 1.55 EXACT REQUIRED)