diff --git a/basis/io/files/unix/unix-tests.factor b/basis/io/files/unix/unix-tests.factor
index d2f4494b0c..1e449bc18a 100644
--- a/basis/io/files/unix/unix-tests.factor
+++ b/basis/io/files/unix/unix-tests.factor
@@ -2,7 +2,7 @@ USING: tools.test io.files io.files.temp io.pathnames
 io.directories io.files.info io.files.info.unix continuations
 kernel io.files.unix math.bitwise calendar accessors
 math.functions math unix.users unix.groups arrays sequences
-grouping ;
+grouping io.pathnames.tests ;
 IN: io.files.unix.tests
 
 [ "/usr/libexec/" ] [ "/usr/libexec/awk/" parent-directory ] unit-test
diff --git a/basis/io/files/windows/nt/nt-tests.factor b/basis/io/files/windows/nt/nt-tests.factor
index b3bfecaafc..a142bb844e 100644
--- a/basis/io/files/windows/nt/nt-tests.factor
+++ b/basis/io/files/windows/nt/nt-tests.factor
@@ -1,5 +1,5 @@
 USING: io.files io.pathnames kernel tools.test io.backend
-io.files.windows.nt splitting sequences ;
+io.files.windows.nt splitting sequences io.pathnames.private ;
 IN: io.files.windows.nt.tests
 
 [ f ] [ "\\foo" absolute-path? ] unit-test