diff --git a/toonz/sources/CMakeLists.txt b/toonz/sources/CMakeLists.txt
index 29ba673..8c09bb5 100644
--- a/toonz/sources/CMakeLists.txt
+++ b/toonz/sources/CMakeLists.txt
@@ -33,17 +33,18 @@ elseif (APPLE)
     endif()
     message("PLATFORM:" ${PLATFORM})
     if (PLATFORM EQUAL 64)
-        set(QT_PATH "~/Qt/5.6/clang_64/lib/")
-        set(QT_LIB_PATH ${QT_PATH})
-        set(CMAKE_PREFIX_PATH "${QT_PATH}cmake/")
+        set(QT_PATH "~/Qt/5.6/clang_64/lib" CACHE PATH "Qt instlattion directory")
+        set(QT_LIB_PATH "${QT_PATH}/")
+        set(CMAKE_PREFIX_PATH "${QT_LIB_PATH}cmake/")
 
         message("CMAKE_PREFIX_PATH:" ${CMAKE_PREFIX_PATH})
         add_definitions(-DMACOSX -Di386)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64 -std=c++11 -stdlib=libc++ -fno-implicit-templates")
     elseif(PLATFORM EQUAL 32)
-        set(QT_PATH "~/Qt/5.6/clang_32/lib/")
-        set(QT_LIB_PATH ${QT_PATH})
-        set(CMAKE_PREFIX_PATH ${QT_PATH}cmake/)
+        set(QT_PATH "~/Qt/5.6/clang_32/lib" CACHE PATH "Qt instlattion directory")
+        set(QT_LIB_PATH "${QT_PATH}/")
+        set(CMAKE_PREFIX_PATH "${QT_LIB_PATH}cmake/")
+
         message("CMAKE_PREFIX_PATH:" ${CMAKE_PREFIX_PATH})
         add_definitions(-DMACOSX -Di386)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32 -std=c++11 -stdlib=libc++ -fno-implicit-templates -D HAS_QUICKDRAW")