diff --git a/core/schemas.lua b/core/schemas.lua
index 7234b06..9c16957 100644
--- a/core/schemas.lua
+++ b/core/schemas.lua
@@ -15,7 +15,8 @@
         playSounds = "boolean",
         showFooter = "boolean",
         refundInvalidMetaname = "boolean",
-        refundMissingMetaname = "boolean"
+        refundMissingMetaname = "boolean",
+        refundInsufficentFunds = "boolean"
     },
     lang = {
         footer = "string",