diff --git a/.changes/android-proguard.md b/.changes/android-proguard.md
new file mode 100644
index 000000000000..d9914873e766
--- /dev/null
+++ b/.changes/android-proguard.md
@@ -0,0 +1,7 @@
+---
+"tauri": "patch:bug"
+"tauri-cli": "patch:bug"
+"@tauri-apps/cli": "patch:bug"
+---
+
+Fix android invalid proguard file when using an `identifier` that contains a component that is a reserved kotlin keyword, like `in`, `class`, etc
diff --git a/crates/tauri-cli/src/mobile/android/mod.rs b/crates/tauri-cli/src/mobile/android/mod.rs
index 1866c8ab9700..c1d8e0e4afd7 100644
--- a/crates/tauri-cli/src/mobile/android/mod.rs
+++ b/crates/tauri-cli/src/mobile/android/mod.rs
@@ -139,6 +139,7 @@ pub fn get_config(
     "WRY_ANDROID_PACKAGE",
     app.android_identifier_escape_kotlin_keyword(),
   );
+  set_var("WRY_ANDROID_PACKAGE_NO_ESCAPE", app.identifier());
   set_var("WRY_ANDROID_LIBRARY", app.lib_name());
   set_var("TAURI_ANDROID_PROJECT_PATH", config.project_dir());
 
diff --git a/crates/tauri/build.rs b/crates/tauri/build.rs
index 6d51bdecf0ca..36935809649e 100644
--- a/crates/tauri/build.rs
+++ b/crates/tauri/build.rs
@@ -301,8 +301,8 @@ fn main() {
     if let Some(project_dir) = env::var_os("TAURI_ANDROID_PROJECT_PATH").map(PathBuf::from) {
       let tauri_proguard = include_str!("./mobile/proguard-tauri.pro").replace(
         "$PACKAGE",
-        &env::var("WRY_ANDROID_PACKAGE")
-          .expect("missing `WRY_ANDROID_PACKAGE` environment variable"),
+        &env::var("WRY_ANDROID_PACKAGE_NO_ESCAPE")
+          .expect("missing `WRY_ANDROID_PACKAGE_NO_ESCAPE` environment variable"),
       );
       std::fs::write(
         project_dir.join("app").join("proguard-tauri.pro"),