diff -ruN a/lemon/CMakeLists.txt b/lemon/CMakeLists.txt
--- a/lemon/CMakeLists.txt	2014-07-07 21:40:24.911315501 +0700
+++ b/lemon/CMakeLists.txt	2021-02-02 04:51:05.235918565 +0700
@@ -66,8 +66,8 @@
 
 INSTALL(
   TARGETS lemon
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
+  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
   COMPONENT library
 )
 
@@ -86,6 +86,6 @@
 
 INSTALL(
   FILES ${CMAKE_CURRENT_BINARY_DIR}/lemon.pc
-  DESTINATION lib/pkgconfig
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
 )