diff --git a/include/proto/vars.h b/include/proto/vars.h
new file mode 100644
index 0000000..dadbf3b
--- /dev/null
+++ b/include/proto/vars.h
@@ -0,0 +1,10 @@
+#ifndef _PROTO_VARS_H
+#define _PROTO_VARS_H
+
+#include <types/vars.h>
+
+void vars_init(struct vars *vars, enum vars_scope scope);
+void vars_prune(struct vars *vars, struct stream *strm);
+int vars_check_arg(struct arg *arg, char **err);
+
+#endif