diff --git a/Cargo.lock b/Cargo.lock
index b3a5970..29f6997 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3013,7 +3013,6 @@ dependencies = [
  "notify-debouncer-full",
  "num-traits",
  "object",
- "path-slash",
  "pbjson",
  "pbjson-build",
  "ppc750cl",
@@ -3231,12 +3230,6 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
 
-[[package]]
-name = "path-slash"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e91099d4268b0e11973f036e885d652fb0b21fedcf69738c627f94db6a44f42"
-
 [[package]]
 name = "pathdiff"
 version = "0.2.3"
diff --git a/objdiff-core/Cargo.toml b/objdiff-core/Cargo.toml
index 64a9ff0..11a0a49 100644
--- a/objdiff-core/Cargo.toml
+++ b/objdiff-core/Cargo.toml
@@ -52,7 +52,6 @@ bindings = [
 build = [
     "dep:notify",
     "dep:notify-debouncer-full",
-    "dep:path-slash",
     "dep:reqwest",
     "dep:self_update",
     "dep:shell-escape",
@@ -186,7 +185,6 @@ tempfile = { version = "3.15", optional = true }
 time = { version = "0.3", optional = true }
 
 [target.'cfg(windows)'.dependencies]
-path-slash = { version = "0.2", optional = true }
 winapi = { version = "0.3", optional = true }
 
 # For Linux static binaries, use rustls
diff --git a/objdiff-core/src/build/mod.rs b/objdiff-core/src/build/mod.rs
index 3532c8a..a345887 100644
--- a/objdiff-core/src/build/mod.rs
+++ b/objdiff-core/src/build/mod.rs
@@ -2,7 +2,7 @@ pub mod watcher;
 
 use std::process::Command;
 
-use typed_path::Utf8PlatformPathBuf;
+use typed_path::{Utf8PlatformPathBuf, Utf8UnixPath};
 
 pub struct BuildStatus {
     pub success: bool,
@@ -31,7 +31,7 @@ pub struct BuildConfig {
     pub selected_wsl_distro: Option<String>,
 }
 
-pub fn run_make(config: &BuildConfig, arg: &str) -> BuildStatus {
+pub fn run_make(config: &BuildConfig, arg: &Utf8UnixPath) -> BuildStatus {
     let Some(cwd) = &config.project_dir else {
         return BuildStatus {
             success: false,
@@ -51,7 +51,6 @@ pub fn run_make(config: &BuildConfig, arg: &str) -> BuildStatus {
     let mut command = {
         use std::os::windows::process::CommandExt;
 
-        use path_slash::PathExt;
         let mut command = if config.selected_wsl_distro.is_some() {
             Command::new("wsl")
         } else {
@@ -61,21 +60,21 @@ pub fn run_make(config: &BuildConfig, arg: &str) -> BuildStatus {
             // Strip distro root prefix \\wsl.localhost\{distro}
             let wsl_path_prefix = format!("\\\\wsl.localhost\\{}", distro);
             let cwd = match cwd.strip_prefix(wsl_path_prefix) {
-                Ok(new_cwd) => format!("/{}", new_cwd.to_slash_lossy().as_ref()),
-                Err(_) => cwd.to_string_lossy().to_string(),
+                Ok(new_cwd) => Utf8UnixPath::new("/").join(new_cwd.with_unix_encoding()),
+                Err(_) => cwd.with_unix_encoding(),
             };
 
             command
                 .arg("--cd")
-                .arg(cwd)
+                .arg(cwd.as_str())
                 .arg("-d")
                 .arg(distro)
                 .arg("--")
                 .arg(make)
                 .args(make_args)
-                .arg(arg.to_slash_lossy().as_ref());
+                .arg(arg.as_str());
         } else {
-            command.current_dir(cwd).args(make_args).arg(arg.to_slash_lossy().as_ref());
+            command.current_dir(cwd).args(make_args).arg(arg.as_str());
         }
         command.creation_flags(winapi::um::winbase::CREATE_NO_WINDOW);
         command
diff --git a/objdiff-core/src/jobs/objdiff.rs b/objdiff-core/src/jobs/objdiff.rs
index c3f95c0..897fa80 100644
--- a/objdiff-core/src/jobs/objdiff.rs
+++ b/objdiff-core/src/jobs/objdiff.rs
@@ -1,6 +1,6 @@
 use std::{sync::mpsc::Receiver, task::Waker};
 
-use anyhow::{anyhow, Error, Result};
+use anyhow::{bail, Error, Result};
 use time::OffsetDateTime;
 use typed_path::Utf8PlatformPathBuf;
 
@@ -43,14 +43,20 @@ fn run_build(
             .as_ref()
             .ok_or_else(|| Error::msg("Missing project dir"))?;
         if let Some(target_path) = &config.target_path {
-            target_path_rel = Some(target_path.strip_prefix(project_dir).map_err(|_| {
-                anyhow!("Target path '{}' doesn't begin with '{}'", target_path, project_dir)
-            })?);
+            target_path_rel = match target_path.strip_prefix(project_dir) {
+                Ok(p) => Some(p.with_unix_encoding()),
+                Err(_) => {
+                    bail!("Target path '{}' doesn't begin with '{}'", target_path, project_dir);
+                }
+            };
         }
         if let Some(base_path) = &config.base_path {
-            base_path_rel = Some(base_path.strip_prefix(project_dir).map_err(|_| {
-                anyhow!("Base path '{}' doesn't begin with '{}'", base_path, project_dir)
-            })?);
+            base_path_rel = match base_path.strip_prefix(project_dir) {
+                Ok(p) => Some(p.with_unix_encoding()),
+                Err(_) => {
+                    bail!("Base path '{}' doesn't begin with '{}'", base_path, project_dir);
+                }
+            };
         };
     }
 
diff --git a/objdiff-gui/src/views/config.rs b/objdiff-gui/src/views/config.rs
index beab5df..74eb835 100644
--- a/objdiff-gui/src/views/config.rs
+++ b/objdiff-gui/src/views/config.rs
@@ -384,7 +384,7 @@ fn object_context_ui(ui: &mut egui::Ui, object: &ObjectConfig) {
             .clicked()
         {
             log::info!("Opening file {}", source_path);
-            if let Err(e) = open::that_detached(source_path) {
+            if let Err(e) = open::that_detached(source_path.as_str()) {
                 log::error!("Failed to open source file: {e}");
             }
             ui.close_menu();
diff --git a/objdiff-gui/src/views/symbol_diff.rs b/objdiff-gui/src/views/symbol_diff.rs
index 062863b..0b5295c 100644
--- a/objdiff-gui/src/views/symbol_diff.rs
+++ b/objdiff-gui/src/views/symbol_diff.rs
@@ -281,7 +281,7 @@ impl DiffViewState {
                     state.config.selected_obj.as_ref().and_then(|obj| obj.source_path.as_ref())
                 {
                     log::info!("Opening file {}", source_path);
-                    open::that_detached(source_path).unwrap_or_else(|err| {
+                    open::that_detached(source_path.as_str()).unwrap_or_else(|err| {
                         log::error!("Failed to open source file: {err}");
                     });
                 }