diff --git a/src/ai/composite/goal.cpp b/src/ai/composite/goal.cpp
index 57f6c36d68f..bb4e01234d3 100644
--- a/src/ai/composite/goal.cpp
+++ b/src/ai/composite/goal.cpp
@@ -299,7 +299,9 @@ protect_goal::protect_goal(readonly_context &context, const config &cfg, bool pr
 }
 
 lua_goal::lua_goal(readonly_context &context, const config &cfg)
-: goal(context, cfg) 
+	: goal(context, cfg)
+	, code_()
+	, handler_()
 {
 	if (cfg.has_attribute("code")) {
 		code_ = cfg["code"].str();