diff --git a/.changes/fix-process-ipc-message-fn.md b/.changes/fix-process-ipc-message-fn.md
new file mode 100644
index 000000000000..334d8ccf37a6
--- /dev/null
+++ b/.changes/fix-process-ipc-message-fn.md
@@ -0,0 +1,5 @@
+---
+"tauri": patch:bug
+---
+
+Fix regression on the JavaScript code that processes the IPC message.
diff --git a/.prettierignore b/.prettierignore
index 2397dc5c154a..c0d96f2c7ace 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -13,4 +13,5 @@ dist
 CHANGELOG.md
 *.wxs
 **/reference.md
-*schema.json
\ No newline at end of file
+*schema.json
+core/tauri/scripts/process-ipc-message-fn.js
\ No newline at end of file
diff --git a/core/tauri/scripts/process-ipc-message-fn.js b/core/tauri/scripts/process-ipc-message-fn.js
index c6f9bcf55261..36c041b8e0a4 100644
--- a/core/tauri/scripts/process-ipc-message-fn.js
+++ b/core/tauri/scripts/process-ipc-message-fn.js
@@ -4,7 +4,7 @@
 
 // this is a function and not an iife so use it carefully
 
-;(function (message) {
+(function (message) {
   if (
     message instanceof ArrayBuffer ||
     ArrayBuffer.isView(message) ||