diff --git a/assimp-config.cmake.in b/assimp-config.cmake.in
index 5031c8f8d..1710cac5d 100644
--- a/assimp-config.cmake.in
+++ b/assimp-config.cmake.in
@@ -10,10 +10,7 @@
 # ASSIMP_LIBRARY_DIRS - link directories
 # ASSIMP_LIBRARIES - libraries to link plugins with
 # ASSIMP_Boost_VERSION - the boost version assimp was compiled with
-get_filename_component(_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
-get_filename_component(_PREFIX "${_PREFIX}" PATH)
-get_filename_component(_PREFIX "${_PREFIX}" PATH)
-get_filename_component(ASSIMP_ROOT_DIR "${_PREFIX}" PATH)
+get_filename_component(ASSIMP_ROOT_DIR "@CMAKE_INSTALL_PREFIX@" REALPATH)
 
 if( MSVC )
   # in order to prevent DLL hell, each of the DLLs have to be suffixed with the major version and msvc prefix