diff --git a/src/insets/InsetListingsParams.cpp b/src/insets/InsetListingsParams.cpp
index f82c44f63a..b0b412b529 100644
--- a/src/insets/InsetListingsParams.cpp
+++ b/src/insets/InsetListingsParams.cpp
@@ -436,6 +436,8 @@ ParValidator::ParValidator()
 		ListingsParam("", false, TRUEFALSE, "", empty_hint);
 	all_params_["breaklines"] =
 		ListingsParam("", false, TRUEFALSE, "", empty_hint);
+	all_params_["breakatwhitespace"] =
+		ListingsParam("", false, TRUEFALSE, "", empty_hint);
 	all_params_["prebreak"] =
 		ListingsParam("", false, ALL, "", empty_hint);
 	all_params_["postbreak"] =