diff --git a/src/hlua.c b/src/hlua.c
index dd9fc00..98c434a 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -7714,7 +7714,7 @@
 {
 	struct hlua_function *fcn = rule->kw->private;
 
-	if (px->options2 & PR_O2_USE_HTX) {
+	if (px->mode == PR_MODE_HTTP && (px->options2 & PR_O2_USE_HTX)) {
 		memprintf(err, "Lua services cannot be used when the HTX internal representation is enabled");
 		return ACT_RET_PRS_ERR;
 	}