diff --git a/t/Macro/FetchMimeType.t b/t/Macro/FetchMimeType.t
index 83632e587..e0788c3ed 100644
--- a/t/Macro/FetchMimeType.t
+++ b/t/Macro/FetchMimeType.t
@@ -41,6 +41,11 @@ my @testSets = (
 		output => 'application/octet-stream',
 		comment => q|Null path returns application/octet-stream|,
 	},
+	{
+		input  => 'foo.rtf',
+		output => 'application/rtf',
+		comment => q|RTF file|, ##Added test due to a bug on some operating systems.
+	},
 	{
 		input  => undef,
 		output => undef,