diff --git a/Mk/Uses/luajit.mk b/Mk/Uses/luajit.mk
index 452370b55de6..c7a15b191209 100644
--- a/Mk/Uses/luajit.mk
+++ b/Mk/Uses/luajit.mk
@@ -1,37 +1,40 @@
 # Select your favorite luajit runtime
 # Feature:    luajit
 # Usage:      USES=  luajit[:version]
 # MAINTAINER: adamw@FreeBSD.org
 
 # After bsd.port.options.mk or bsd.port.pre.mk, the following are set:
 #   LUAJIT_VER:    The selected luajit version
 #   LUAJIT_INCDIR: The path to luajit's header files
+#   LUAJIT_LUAVER: Which luajit spec version is selected
+#                  (2.0 for luajit, else 2.1)
 
 .if !defined(_INCLUDE_USES_LUAJIT_MK)
 _INCLUDE_USES_LUAJIT_MK=yes
 
 .if !empty(luajit_ARGS)
 LUAJIT_VER=	${luajit_ARGS}
 .else
 LUAJIT_VER=	${LUAJIT_DEFAULT}
 .endif
 
 # When adding a version, please keep the comment in
 # Mk/bsd.default-versions.mk in sync
 VALID_LUAJIT_VER=	luajit luajit-devel luajit-openresty
 
 .if empty(VALID_LUAJIT_VER:M${LUAJIT_DEFAULT})
 IGNORE=	Invalid luajit default version ${LUAJIT_DEFAULT}: valid versions are ${VALID_LUAJIT_VER}
 .elif empty(VALID_LUAJIT_VER:M${LUAJIT_VER})
 IGNORE=	Invalid luajit version ${LUAJIT_VER}: valid versions are ${VALID_LUAJIT_VER}
 .endif
 
 .if ${LUAJIT_VER} == luajit
-LUAJIT_INCDIR=	${LOCALBASE}/include/luajit-2.0
+LUAJIT_LUAVER=	2.0
 .else
-LUAJIT_INCDIR=	${LOCALBASE}/include/luajit-2.1
+LUAJIT_LUAVER=	2.1
 .endif
 
 LIB_DEPENDS+=	libluajit-5.1.so:lang/${LUAJIT_VER}
+LUAJIT_INCDIR=	${LOCALBASE}/include/luajit-${LUAJIT_LUAVER}
 
 .endif