diff --git a/DevIL/CMakeLists.txt b/DevIL/CMakeLists.txt
index e342f93d..5f3f4f53 100644
--- a/DevIL/CMakeLists.txt
+++ b/DevIL/CMakeLists.txt
@@ -4,6 +4,8 @@ project(ImageLib)
 # include our custom modules
 set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
 
+include(GNUInstallDirs)
+
 add_subdirectory(src-IL)
 add_subdirectory(src-ILU)
 add_subdirectory(src-ILUT)
diff --git a/DevIL/src-IL/CMakeLists.txt b/DevIL/src-IL/CMakeLists.txt
index 3cda85cf..e087f423 100644
--- a/DevIL/src-IL/CMakeLists.txt
+++ b/DevIL/src-IL/CMakeLists.txt
@@ -311,14 +311,14 @@ configure_file( pkgconfig/IL.pc.cmake.in
 
 # Installation
 install (TARGETS IL
-    ARCHIVE DESTINATION lib
-    LIBRARY DESTINATION lib
-    RUNTIME DESTINATION bin
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 install (FILES ../include/IL/il.h DESTINATION include/IL)
 
 install(FILES
     ${CMAKE_CURRENT_BINARY_DIR}/IL.pc
-	DESTINATION lib/pkgconfig
+	DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
 )
 
diff --git a/DevIL/src-ILU/CMakeLists.txt b/DevIL/src-ILU/CMakeLists.txt
index 44b9531b..0b506fae 100644
--- a/DevIL/src-ILU/CMakeLists.txt
+++ b/DevIL/src-ILU/CMakeLists.txt
@@ -75,14 +75,14 @@ endif(UNICODE)
 
 # Installation
 install (TARGETS ILU
-    ARCHIVE DESTINATION lib
-    LIBRARY DESTINATION lib
-    RUNTIME DESTINATION bin
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 install (FILES ../include/IL/ilu.h DESTINATION include/IL)
 
 install(FILES
     ${CMAKE_CURRENT_BINARY_DIR}/ILU.pc
-	DESTINATION lib/pkgconfig
+	DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
 )
 
diff --git a/DevIL/src-ILUT/CMakeLists.txt b/DevIL/src-ILUT/CMakeLists.txt
index 63662bc6..edc49586 100644
--- a/DevIL/src-ILUT/CMakeLists.txt
+++ b/DevIL/src-ILUT/CMakeLists.txt
@@ -95,14 +95,14 @@ endif(UNICODE)
 
 # Installation
 install (TARGETS ILUT
-    ARCHIVE DESTINATION lib
-    LIBRARY DESTINATION lib
-    RUNTIME DESTINATION bin
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 install (FILES ../include/IL/ilut.h DESTINATION include/IL)
 
 install(FILES
     ${CMAKE_CURRENT_BINARY_DIR}/ILUT.pc
-	DESTINATION lib/pkgconfig
+	DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
 )