diff --git a/Cargo.toml b/Cargo.toml
index c04790c..45b42ef 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ members = [
 
 [workspace.package]
 license = "MIT"
-version = "0.5.0"
+version = "0.5.1"
 edition = "2021"
 repository = "https://github.com/antangelo/xdvdfs"
 homepage = "https://github.com/antangelo/xdvdfs"
diff --git a/xdvdfs-cli/Cargo.toml b/xdvdfs-cli/Cargo.toml
index ef7a3f5..6aae01c 100644
--- a/xdvdfs-cli/Cargo.toml
+++ b/xdvdfs-cli/Cargo.toml
@@ -13,7 +13,7 @@ homepage.workspace = true
 exclude = ["**/*.iso", "**/*.xiso"]
 
 [dependencies]
-xdvdfs = { path = "../xdvdfs-core", version = "0.5.0" }
+xdvdfs = { path = "../xdvdfs-core", version = "0.5.1" }
 clap = { version = "4.2.1", features = ["derive"] }
 md-5 = { version = "0.10.5", default-features = false }
 futures = "0.3.28"
diff --git a/xdvdfs-cli/src/cmd_pack.rs b/xdvdfs-cli/src/cmd_pack.rs
index 9af9ace..b17ecb4 100644
--- a/xdvdfs-cli/src/cmd_pack.rs
+++ b/xdvdfs-cli/src/cmd_pack.rs
@@ -7,7 +7,7 @@ fn get_default_image_path(source_path: &Path) -> Option<PathBuf> {
     let output = PathBuf::from(source_file_name).with_extension("iso");
 
     if output.exists() && output == source_path {
-        return Some(PathBuf::from(source_file_name).with_extension("xiso"));
+        return Some(PathBuf::from(source_file_name).with_extension("xiso.iso"));
     }
 
     Some(output)
diff --git a/xdvdfs-web/Cargo.toml b/xdvdfs-web/Cargo.toml
index 5caca55..d8bce19 100644
--- a/xdvdfs-web/Cargo.toml
+++ b/xdvdfs-web/Cargo.toml
@@ -23,6 +23,6 @@ wasm-bindgen = "0.2.84"
 wasm-bindgen-futures = "0.4.34"
 wasm-logger = "0.2.0"
 web-sys = { version = "0.3.61", features = ["WritableStream", "MediaQueryList", "Window"] }
-xdvdfs = { path = "../xdvdfs-core", version = "0.5.0" }
+xdvdfs = { path = "../xdvdfs-core", version = "0.5.1" }
 yew = { version = "0.20.0", features = ["csr"] }
 yewprint = "0.4.4"
diff --git a/xdvdfs-web/src/packing.rs b/xdvdfs-web/src/packing.rs
index f88b456..6a46501 100644
--- a/xdvdfs-web/src/packing.rs
+++ b/xdvdfs-web/src/packing.rs
@@ -1,3 +1,5 @@
+use std::path::PathBuf;
+
 use crate::fs::FSWriteWrapper;
 
 use super::fs::{self, FileSystemFileHandle};
@@ -194,7 +196,15 @@ impl Component for ImageBuilderWorkflow {
                         <H5>{"Save the output XISO image to a file"}</H5>
                         <div>
                             <FilePickerButton
-                                kind={PickerKind::SaveFile(self.input_name().map(|name| format!("{}.xiso", name)))}
+                                kind={PickerKind::SaveFile(
+                                    self.input_name().map(|name|
+                                        PathBuf::from(name)
+                                            .with_extension("xiso.iso")
+                                            .file_name()
+                                            .and_then(|name| name.to_str())
+                                            .map(|name| name.to_owned())
+                                            .expect("file name should be defined")
+                                        ))}
                                 button_text={"Save image"}
                                 disabled={is_packing}
                                 setter={ctx.link().callback(|res| {