diff --git a/dlls/wininet/tests/http.c b/dlls/wininet/tests/http.c
index c5321b4..b810494 100644
--- a/dlls/wininet/tests/http.c
+++ b/dlls/wininet/tests/http.c
@@ -1816,7 +1816,7 @@ static void test_http1_1(int port)
 
 static void test_HttpSendRequestW(int port)
 {
-    static const WCHAR header[] = {'U','A','-','C','P','U',':',' ','x','8','6',0};
+    static const WCHAR header[] = {'C','o','n','t','e','n','t','-','t','y','p','e',':',' ','t','e','x','t','/','p','l','a','i','n',0};
     HINTERNET ses, con, req;
     DWORD error;
     BOOL ret;