diff --git a/CMakeLists.txt b/CMakeLists.txt
index 951a0c14f3..6d53ba4727 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -119,7 +119,7 @@ include_directories(SYSTEM ${LUAJIT_INCLUDE_DIRS})
 
 find_package(LibIntl)
 if(LibIntl_FOUND)
-  include_directories(SYSTEM ${LibIntl_INCLUDE_DIR})
+  include_directories(SYSTEM ${LibIntl_INCLUDE_DIRS})
 endif()
 
 # Determine platform's threading library. Set CMAKE_THREAD_PREFER_PTHREAD