diff --git a/Sources/App/API/UInt32+Extensions.swift b/Sources/App/API/UInt32+Extensions.swift
index 90708ef..12a8762 100644
--- a/Sources/App/API/UInt32+Extensions.swift
+++ b/Sources/App/API/UInt32+Extensions.swift
@@ -1,4 +1,5 @@
 import Foundation
+import CoreFoundation
 
 extension UInt32 {