diff --git a/CMakeLists.txt b/CMakeLists.txt
index ff226ef..96ab24b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -58,12 +58,12 @@ target_compile_definitions(GSL INTERFACE
 if(GSL_STANDALONE_PROJECT)
     target_include_directories(GSL INTERFACE
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-        $<INSTALL_INTERFACE:include>
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
     )
 else()
     target_include_directories(GSL SYSTEM INTERFACE
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-        $<INSTALL_INTERFACE:include>
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
     )
 endif()