diff --git a/swift/Tests/SwiftNoosphereTests/NoosphereTests.swift b/swift/Tests/SwiftNoosphereTests/NoosphereTests.swift
index c9d001d58..f03e9f250 100644
--- a/swift/Tests/SwiftNoosphereTests/NoosphereTests.swift
+++ b/swift/Tests/SwiftNoosphereTests/NoosphereTests.swift
@@ -188,12 +188,13 @@ final class NoosphereTests: XCTestCase {
         var pointer = file_header_names.ptr!;
         
         // NOTE: "hello" is only given once even though there are two headers with that name
-        assert(name_count == 3)
+        assert(name_count == 4)
         
         let expected_headers = [
             ["foo", "bar"],
             ["hello", "world"],
-            ["Content-Type", "text/subtext"]
+            ["Content-Type", "text/subtext"],
+            ["Content-Length", String(file_bytes.count)]
         ]
         
         for i in 0..<name_count {