diff --git a/lib/hooks/print.cpp b/lib/hooks/print.cpp
index c4d3e0247..d7e9b8e0a 100644
--- a/lib/hooks/print.cpp
+++ b/lib/hooks/print.cpp
@@ -99,6 +99,8 @@ public:
 
 		assert(state != State::STARTED);
 
+		Hook::parse(cfg);
+
 		ret = json_unpack_ex(cfg, &err, 0, "{ s?: s, s?: s, s?: s }",
 			"output", &u,
 			"prefix", &p,