diff --git a/4diac-forte.spec b/4diac-forte.spec
index 8363eef..453dab8 100644
--- a/4diac-forte.spec
+++ b/4diac-forte.spec
@@ -22,6 +22,10 @@ BuildRequires: open62541-devel >= 0.2
 BuildRequires: lua-devel >= 5.1
 %endif
 
+%if 0%{?with_luajit}
+BuildRequires: luajit-devel >= 2.1.0
+%endif
+
 %description
 The 4DIAC runtime environment (4DIAC-RTE, FORTE) is a small portable
 implementation of an IEC 61499 runtime environment targeting small
@@ -45,6 +49,7 @@ cd bin/posix
        %{?with_sysfs: -DFORTE_MODULE_SysFs=ON } \
        -DFORTE_MODULE_UTILS=ON \
        %{?with_lua: -DFORTE_USE_LUATYPES=Lua } \
+       %{?with_luajit: -DFORTE_USE_LUATYPES=LuaJIT } \
        -DFORTE_TESTS=OFF \
        ../..
 make %{?_smp_mflags}