diff --git a/src/unasync/__init__.py b/src/unasync/__init__.py
index 7334f71..aa540df 100644
--- a/src/unasync/__init__.py
+++ b/src/unasync/__init__.py
@@ -52,13 +52,18 @@ def isidentifier(s):
 
     StringIO = io.StringIO
 
+if hasattr(os, "fspath"):  # PY3
+    fspath = os.fspath
+else:  # PY2
+    fspath = str
+
 
 class Rule:
     """A single set of rules for 'unasync'ing file(s)"""
 
     def __init__(self, fromdir, todir, additional_replacements=None):
-        self.fromdir = fromdir.replace("/", os.sep)
-        self.todir = todir.replace("/", os.sep)
+        self.fromdir = fspath(fromdir).replace("/", os.sep)
+        self.todir = fspath(todir).replace("/", os.sep)
 
         # Add any additional user-defined token replacements to our list.
         self.token_replacements = _ASYNC_TO_SYNC.copy()
@@ -69,6 +74,8 @@ def _match(self, filepath):
         """Determines if a Rule matches a given filepath and if so
         returns a higher comparable value if the match is more specific.
         """
+        filepath = fspath(filepath)
+
         file_segments = [x for x in filepath.split(os.sep) if x]
         from_segments = [x for x in self.fromdir.split(os.sep) if x]
         len_from_segments = len(from_segments)
@@ -83,6 +90,7 @@ def _match(self, filepath):
         return False
 
     def _unasync_file(self, filepath):
+        filepath = fspath(filepath)
         with open(filepath, "rb") as f:
             write_kwargs = {}
             if sys.version_info[0] >= 3:  # PY3  # pragma: no branch
diff --git a/test-requirements.txt b/test-requirements.txt
index 2c7cf23..55b2caa 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,2 +1,3 @@
 pytest>=4.3.0
-pytest-cov
\ No newline at end of file
+pytest-cov
+pathlib2 ; python_version < '3.5'
\ No newline at end of file
diff --git a/tests/test_unasync.py b/tests/test_unasync.py
index f8c4ed7..7629bb9 100644
--- a/tests/test_unasync.py
+++ b/tests/test_unasync.py
@@ -2,6 +2,11 @@
 import errno
 import io
 import os
+
+try:
+    import pathlib
+except ImportError:
+    import pathlib2 as pathlib
 import shutil
 import subprocess
 import sys
@@ -43,6 +48,12 @@ def test_rule_on_short_path():
     assert rule._match("/ahip/") is False
 
 
+def test_rule_with_pathlib_path():
+    path_async_base = pathlib.Path("/ahip")
+    path_sync_base = pathlib.Path("/hip")
+    unasync.Rule(path_async_base / "tests", path_sync_base / "tests")
+
+
 @pytest.mark.parametrize("source_file", TEST_FILES)
 def test_unasync(tmpdir, source_file):