diff --git a/extra/io/windows/nt/files/files-tests.factor b/extra/io/windows/nt/files/files-tests.factor
index a96bd6dad8..3b31d73e4a 100644
--- a/extra/io/windows/nt/files/files-tests.factor
+++ b/extra/io/windows/nt/files/files-tests.factor
@@ -9,3 +9,7 @@ IN: io.windows.nt.files.tests
 [ t ] [ "//" root-directory? ] unit-test
 [ t ] [ "//////////////" root-directory? ] unit-test
 [ t ] [ "\\foo" absolute-path? ] unit-test
+[ t ] [ "\\\\?\\foo" absolute-path? ] unit-test
+[ t ] [ "c:\\foo" absolute-path? ] unit-test
+[ t ] [ "c:" absolute-path? ] unit-test
+