diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+1.5.2
+
+* [Add support for `OsPath`](https://github.com/Gabriella439/optparse-generic/pull/111)
+
 1.5.1
 
 * [Add `Eq` instances for `(<?>)`, `(<!>)`, and `(<#>)`](https://github.com/Gabriella439/optparse-generic/pull/109)
diff --git a/optparse-generic.cabal b/optparse-generic.cabal
--- a/optparse-generic.cabal
+++ b/optparse-generic.cabal
@@ -1,5 +1,5 @@
 Name: optparse-generic
-Version: 1.5.1
+Version: 1.5.2
 Cabal-Version: >=1.10
 Build-Type: Simple
 License: BSD3
@@ -32,7 +32,8 @@
         optparse-applicative >= 0.16.0.0 && < 0.19,
         time                 >= 1.5      && < 1.13,
         void                                < 0.8 ,
-        bytestring                          < 0.12
+        bytestring                          < 0.12,
+        filepath                            < 1.5
     
     if impl(ghc < 8.0)
         Build-Depends:
diff --git a/src/Options/Generic.hs b/src/Options/Generic.hs
--- a/src/Options/Generic.hs
+++ b/src/Options/Generic.hs
@@ -384,6 +384,10 @@
 import Numeric.Natural (Natural)
 #endif
 
+#if MIN_VERSION_filepath(1,4,100)
+import System.OsPath
+#endif
+
 auto :: Read a => ReadM a
 auto = do
     s <- Options.readerAsk
@@ -602,6 +606,18 @@
 
     readField = readISO8601Field
 
+#if MIN_VERSION_filepath(1,4,100)
+instance ParseField OsString where
+  metavar _ = "PATH"
+  readField = Options.eitherReader reader
+    where
+      reader string =
+        case encodeUtf string of
+            Left err -> Left ("Invalid PATH: " ++ show err)
+            Right t -> pure t
+
+#endif
+
 {-| A class for all types that can be parsed from zero or more arguments/options
     on the command line
 
@@ -651,6 +667,10 @@
 instance ParseFields LocalTime
 instance ParseFields ZonedTime
 
+#if MIN_VERSION_filepath(1,4,100)
+instance ParseFields OsString
+#endif
+
 #if MIN_VERSION_base(4,8,0)
 instance ParseFields Natural
 #endif
@@ -881,6 +901,11 @@
 
 instance ParseRecord ZonedTime where
     parseRecord = fmap getOnly parseRecord
+
+#if MIN_VERSION_filepath(1,4,100)
+instance ParseRecord OsString where
+    parseRecord = fmap getOnly parseRecord
+#endif
 
 instance ParseField a => ParseRecord (Maybe a) where
     parseRecord = fmap getOnly parseRecord