diff --git a/src/dict.rs b/src/dict.rs
index ecb2d38..5545414 100644
--- a/src/dict.rs
+++ b/src/dict.rs
@@ -60,9 +60,7 @@ impl Paths {
     }
 
     pub(crate) fn key_path(&self) -> PathBuf {
-        let mut pb = PathBuf::from(&self.base_path);
-        pb.push("Contents");
-        pb.push(&self.contents_dir);
+        let mut pb = self.contents_path();
         pb.push("key");
         pb
     }
@@ -74,9 +72,7 @@ impl Paths {
     }
 
     pub(crate) fn headline_path(&self) -> PathBuf {
-        let mut pb = PathBuf::from(&self.base_path);
-        pb.push("Contents");
-        pb.push(&self.contents_dir);
+        let mut pb = self.contents_path();
         pb.push("headline");
         pb
     }
@@ -136,7 +132,7 @@ impl MonokakidoDict {
         };
         let pages = Pages::new(&paths)?;
         let audio = Audio::new(&paths)?;
-        let keys = Keys::new(&paths)?;
+        let keys = Keys::new(paths.key_headword_path())?;
 
         Ok(MonokakidoDict {
             paths,
diff --git a/src/key.rs b/src/key.rs
index 0695e95..d5603c2 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -2,6 +2,7 @@ use std::{
     borrow::Cow,
     cmp::Ordering,
     fs::File,
+    path::Path,
     io::{Read, Seek},
     mem::size_of,
     str::from_utf8,
@@ -9,7 +10,6 @@ use std::{
 
 use crate::{
     abi_utils::{TransmuteSafe, LE32, read_vec},
-    dict::Paths,
     Error,
 };
 
@@ -119,8 +119,8 @@ impl Keys {
         Ok(())
     }
 
-    pub fn new(paths: &Paths) -> Result<Keys, Error> {
-        let mut file = File::open(paths.key_headword_path())?;
+    pub fn new<P: AsRef<Path>>(path: P) -> Result<Keys, Error> {
+        let mut file = File::open(path)?;
         let file_size = file.metadata()?.len() as usize;
         let mut hdr = FileHeader::default();
         file.read_exact(hdr.as_bytes_mut())?;
diff --git a/src/lib.rs b/src/lib.rs
index 0fd5c29..68fa38d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,7 +4,7 @@ mod dict;
 mod error;
 mod key;
 mod pages;
-mod resource;
+pub mod resource;
 mod headline;
 
 pub use audio::Audio;
diff --git a/src/resource/nrsc.rs b/src/resource/nrsc.rs
index cab1bba..3eb928a 100644
--- a/src/resource/nrsc.rs
+++ b/src/resource/nrsc.rs
@@ -210,7 +210,7 @@ impl Nrsc {
         Ok(files)
     }
 
-    pub(crate) fn new(path: &Path) -> Result<Self, Error> {
+    pub fn new(path: &Path) -> Result<Self, Error> {
         let files = Nrsc::files(path)?;
         let index = NrscIndex::new(path)?;
         Ok(Nrsc {
diff --git a/src/resource/rsc.rs b/src/resource/rsc.rs
index 759fee8..2f6a37a 100644
--- a/src/resource/rsc.rs
+++ b/src/resource/rsc.rs
@@ -280,7 +280,7 @@ impl Rsc {
         Ok(files)
     }
 
-    pub(crate) fn new(path: &Path, rsc_name: &str) -> Result<Self, Error> {
+    pub fn new(path: &Path, rsc_name: &str) -> Result<Self, Error> {
         let files = Rsc::files(path, rsc_name)?;
         let index = RscIndex::new(path, rsc_name)?;
         Ok(Self {