diff --git a/test/Microsoft.AspNetCore.Server.HttpSys.FunctionalTests/ResponseHeaderTests.cs b/test/Microsoft.AspNetCore.Server.HttpSys.FunctionalTests/ResponseHeaderTests.cs
index cc80f72909..3631fc769b 100644
--- a/test/Microsoft.AspNetCore.Server.HttpSys.FunctionalTests/ResponseHeaderTests.cs
+++ b/test/Microsoft.AspNetCore.Server.HttpSys.FunctionalTests/ResponseHeaderTests.cs
@@ -255,7 +255,7 @@ namespace Microsoft.AspNetCore.Server.HttpSys
             }
         }
 
-        [Theory, MemberData(nameof(NullHeaderData))]
+        [ConditionalTheory, MemberData(nameof(NullHeaderData))]
         public async Task Headers_IgnoreNullHeaders(string headerName, StringValues headerValue, StringValues expectedValue)
         {
             string address;