diff --git a/src/config.cpp b/src/config.cpp
index aa122cce..68778969 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -263,6 +263,7 @@ Config::Config()
     _map["no_splice_move"] =
     _map["no_split_write"] =
     _map["nonempty"] =
+    _map["negative_entry"] =
     _map["splice_move"] =
     _map["splice_read"] =
     _map["splice_write"] =