diff --git a/CMakeLists.txt b/CMakeLists.txt
index fc7cb3c98..fe5b3f086 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -273,7 +273,7 @@ endif(OGRE_STATIC)
 
 include_directories("."
     ${OGRE_INCLUDE_DIR} ${OGRE_INCLUDE_DIR}/Ogre ${OGRE_INCLUDE_DIR}/OGRE ${OGRE_INCLUDE_DIRS} ${OGRE_PLUGIN_INCLUDE_DIRS}
-    ${OGRE_INCLUDE_DIR}/Ogre/Overlay ${OGRE_INCLUDE_DIR}/OGRE/Overlay ${OGRE_Overlay_INCLUDE_DIRS}
+    ${OGRE_INCLUDE_DIR}/Ogre/Overlay ${OGRE_INCLUDE_DIR}/OGRE/Overlay ${OGRE_Overlay_INCLUDE_DIR}
     ${SDL2_INCLUDE_DIR}
     ${Boost_INCLUDE_DIR}
     ${PLATFORM_INCLUDE_DIR}