From 91becd9e4fa2db089ddc6b21dadc06133e939e08 Mon Sep 17 00:00:00 2001
From: Tony <68118705+Legend-Master@users.noreply.github.com>
Date: Mon, 8 Dec 2025 20:13:52 +0800
Subject: [PATCH] fix(nsis): plugins not signed (#14627)

---
 .changes/nsis-plugin-sign-path.md               |  5 +++++
 .../src/bundle/windows/nsis/mod.rs              | 17 ++++++++++-------
 2 files changed, 15 insertions(+), 7 deletions(-)
 create mode 100644 .changes/nsis-plugin-sign-path.md

diff --git a/.changes/nsis-plugin-sign-path.md b/.changes/nsis-plugin-sign-path.md
new file mode 100644
index 000000000..99f4f6861
--- /dev/null
+++ b/.changes/nsis-plugin-sign-path.md
@@ -0,0 +1,5 @@
+---
+tauri-bundler: patch:bug
+---
+
+Fix NSIS plugins not being signed due to wrong path handlings
diff --git a/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs b/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs
index f456ed97a..d4d8f2cac 100644
--- a/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs
+++ b/crates/tauri-bundler/src/bundle/windows/nsis/mod.rs
@@ -621,13 +621,16 @@ fn build_nsis_app_installer(
   fs::create_dir_all(nsis_installer_path.parent().unwrap())?;
 
   if settings.windows().can_sign() {
-    log::info!("Signing NSIS plugins");
-    for dll in NSIS_PLUGIN_FILES {
-      let path = additional_plugins_path.join(dll);
-      if path.exists() {
-        try_sign(&path, settings)?;
-      } else {
-        log::warn!("Could not find {}, skipping signing", path.display());
+    if let Some(plugin_copy_path) = &maybe_plugin_copy_path {
+      let plugin_copy_path = plugin_copy_path.join("x86-unicode");
+      log::info!("Signing NSIS plugins");
+      for dll in NSIS_PLUGIN_FILES {
+        let path = plugin_copy_path.join(dll);
+        if path.exists() {
+          try_sign(&path, settings)?;
+        } else {
+          log::warn!("Could not find {}, skipping signing", path.display());
+        }
       }
     }
   }