diff --git a/src/fshelper/mod.rs b/src/fshelper/mod.rs
index 933416a..e4fbd03 100644
--- a/src/fshelper/mod.rs
+++ b/src/fshelper/mod.rs
@@ -1,4 +1,6 @@
+use std::borrow::Cow;
 use std::env::current_dir;
+use std::ffi::OsStr;
 use std::fs;
 use std::io;
 #[cfg(any(unix, target_os = "redox"))]
@@ -64,3 +66,19 @@ pub fn is_empty(entry: &walk::DirEntry) -> bool {
         false
     }
 }
+
+#[cfg(any(unix, target_os = "redox"))]
+pub fn osstr_to_bytes(input: &OsStr) -> Cow<[u8]> {
+    use std::os::unix::ffi::OsStrExt;
+    Cow::Borrowed(input.as_bytes())
+}
+
+#[cfg(windows)]
+pub fn osstr_to_bytes(input: &OsStr) -> Cow<[u8]> {
+    let string = input.to_string_lossy();
+
+    match string {
+        Cow::Owned(string) => Cow::Owned(string.into_bytes()),
+        Cow::Borrowed(string) => Cow::Borrowed(string.as_bytes()),
+    }
+}
diff --git a/src/internal/mod.rs b/src/internal/mod.rs
deleted file mode 100644
index f8398a1..0000000
--- a/src/internal/mod.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-use std::borrow::Cow;
-use std::ffi::OsStr;
-
-#[cfg(any(unix, target_os = "redox"))]
-pub fn osstr_to_bytes(input: &OsStr) -> Cow<[u8]> {
-    use std::os::unix::ffi::OsStrExt;
-    Cow::Borrowed(input.as_bytes())
-}
-
-#[cfg(windows)]
-pub fn osstr_to_bytes(input: &OsStr) -> Cow<[u8]> {
-    let string = input.to_string_lossy();
-
-    match string {
-        Cow::Owned(string) => Cow::Owned(string.into_bytes()),
-        Cow::Borrowed(string) => Cow::Borrowed(string.as_bytes()),
-    }
-}
diff --git a/src/main.rs b/src/main.rs
index 193515a..5f39eec 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,7 +7,6 @@ mod exit_codes;
 mod filetypes;
 mod filter;
 mod fshelper;
-mod internal;
 mod options;
 mod output;
 mod regex_helper;
diff --git a/src/walk.rs b/src/walk.rs
index 819d61e..e818c9e 100644
--- a/src/walk.rs
+++ b/src/walk.rs
@@ -1,7 +1,6 @@
 use crate::exec;
 use crate::exit_codes::{merge_exitcodes, ExitCode};
 use crate::fshelper;
-use crate::internal::osstr_to_bytes;
 use crate::options::Options;
 use crate::output;
 
@@ -362,14 +361,14 @@ fn spawn_senders(
                 }
             };
 
-            if !pattern.is_match(&osstr_to_bytes(search_str.as_ref())) {
+            if !pattern.is_match(&fshelper::osstr_to_bytes(search_str.as_ref())) {
                 return ignore::WalkState::Continue;
             }
 
             // Filter out unwanted extensions.
             if let Some(ref exts_regex) = config.extensions {
                 if let Some(path_str) = entry_path.file_name() {
-                    if !exts_regex.is_match(&osstr_to_bytes(path_str)) {
+                    if !exts_regex.is_match(&fshelper::osstr_to_bytes(path_str)) {
                         return ignore::WalkState::Continue;
                     }
                 } else {