diff --git a/tests/data/t.rar.gz b/tests/data/t.rar.gz
new file mode 100644
index 0000000..ccde84c
Binary files /dev/null and b/tests/data/t.rar.gz differ
diff --git a/tests/data/t.rar.gz.foo b/tests/data/t.rar.gz.foo
new file mode 100644
index 0000000..ccde84c
Binary files /dev/null and b/tests/data/t.rar.gz.foo differ
diff --git a/tests/test_mime.py b/tests/test_mime.py
index 8b93ce0..a23c81e 100644
--- a/tests/test_mime.py
+++ b/tests/test_mime.py
@@ -150,6 +150,12 @@ class TestMime (unittest.TestCase):
         self.mime_test_file("t.tar.bz2.foo", "application/x-tar", "bzip2")
         self.mime_test_file("t.tbz2.foo", "application/x-tar", "bzip2")
 
+    @needs_program('file')
+    def test_nested_gzip (self):
+        # Ensure that a file that doesn't natively support encoding does not see the encoding
+        self.mime_test_file("t.rar.gz", "application/gzip")
+        self.mime_test_file("t.rar.gz.foo", "application/gzip")
+
     @needs_program('file')
     @needs_program('gzip')
     def test_mime_file_gzip (self):