diff --git a/Sources/Segment/Configuration.swift b/Sources/Segment/Configuration.swift
index 8de631e8..f43512c7 100644
--- a/Sources/Segment/Configuration.swift
+++ b/Sources/Segment/Configuration.swift
@@ -213,6 +213,8 @@ public extension Configuration {
     @discardableResult
     func flushQueue(_ queue: DispatchQueue) -> Configuration {
         values.flushQueue = queue
+        return self
+    }
 
     @discardableResult
     func userAgent(_ userAgent: String) -> Configuration {