diff --git a/DuckDuckGo/Statistics/GeneralPixel.swift b/DuckDuckGo/Statistics/GeneralPixel.swift
index ab1c9287d8..5271109df9 100644
--- a/DuckDuckGo/Statistics/GeneralPixel.swift
+++ b/DuckDuckGo/Statistics/GeneralPixel.swift
@@ -1447,6 +1447,10 @@ enum GeneralPixel: PixelKitEventV2 {
 
     }
 
+    enum AutofillParameterKeys {
+            static var backfilled = "backfilled"
+    }
+
     public enum CompileTimeBucketAggregation: String, CustomStringConvertible {
 
         public var description: String { rawValue }