diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0b2ccfb29..41d8f0844 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1230,7 +1230,7 @@ include(CMakePackageConfigHelpers)
 set(PKG_NAME "Allegro")
 string(TOLOWER ${PKG_NAME} PKG_NAME_LOWER)
 
-set(PKG_CONFIG_INSTALL_DIR "lib/cmake/${PKG_NAME_LOWER}")
+set(PKG_CONFIG_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/${PKG_NAME_LOWER}")
 set(PKG_GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
 set(PKG_TARGETS_NAME "${PKG_NAME}Targets")
 set(PKG_CONFIG_FILE "${PKG_GENERATED_DIR}/${PKG_NAME}Config.cmake")