diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e21fd2f..8ac270f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -155,10 +155,14 @@ IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 	ENDIF ()
 ENDIF ()
 
-INSTALL (TARGETS msgpack msgpack-static DESTINATION lib)
+IF (NOT DEFINED CMAKE_INSTALL_LIBDIR)
+	SET(CMAKE_INSTALL_LIBDIR lib)
+ENDIF ()
+
+INSTALL (TARGETS msgpack msgpack-static DESTINATION ${CMAKE_INSTALL_LIBDIR})
 INSTALL (DIRECTORY src/msgpack DESTINATION include)
 INSTALL (FILES src/msgpack.h src/msgpack.hpp DESTINATION include)
-INSTALL (FILES ${CMAKE_CURRENT_BINARY_DIR}/msgpack.pc DESTINATION lib/pkgconfig)
+INSTALL (FILES ${CMAKE_CURRENT_BINARY_DIR}/msgpack.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 
 # Doxygen
 FIND_PACKAGE (Doxygen)