diff --git a/Lib/test/test_textwrap.py b/Lib/test/test_textwrap.py
index 787153e..c1c09f6 100644
--- a/Lib/test/test_textwrap.py
+++ b/Lib/test/test_textwrap.py
@@ -129,6 +129,10 @@
         expect = ['And she said, "Go to hell!"  Can you believe that?']
         self.check(wrapper.wrap(text), expect)
 
+        text = 'File stdio.h is nice.'
+        expect = ['File stdio.h is nice.']
+        self.check(wrapper.wrap(text), expect)
+
     def test_wrap_short(self):
         # Wrapping to make short lines longer