diff --git a/.changes/fix-ipc-payload.md b/.changes/fix-ipc-payload.md
new file mode 100644
index 000000000..ea495b054
--- /dev/null
+++ b/.changes/fix-ipc-payload.md
@@ -0,0 +1,5 @@
+---
+"tauri": 'patch:bug'
+---
+
+No longer unpacking and flattening the `payload` over the IPC so that commands with arguments called `cmd`, `callback`, `error`, `options` or `payload` aren't breaking the IPC.
diff --git a/core/tauri/scripts/core.js b/core/tauri/scripts/core.js
index 6c33e0a0b..61bdf1d67 100644
--- a/core/tauri/scripts/core.js
+++ b/core/tauri/scripts/core.js
@@ -59,11 +59,11 @@
 
   window.__TAURI_INVOKE__ = function invoke(cmd, payload = {}, options) {
     return new Promise(function (resolve, reject) {
-      var callback = window.__TAURI__.transformCallback(function (r) {
+      const callback = window.__TAURI__.transformCallback(function (r) {
         resolve(r)
         delete window[`_${error}`]
       }, true)
-      var error = window.__TAURI__.transformCallback(function (e) {
+      const error = window.__TAURI__.transformCallback(function (e) {
         reject(e)
         delete window[`_${callback}`]
       }, true)
diff --git a/core/tauri/scripts/ipc-protocol.js b/core/tauri/scripts/ipc-protocol.js
index 724284af8..8d3ac764e 100644
--- a/core/tauri/scripts/ipc-protocol.js
+++ b/core/tauri/scripts/ipc-protocol.js
@@ -44,7 +44,7 @@
         })
       } else {
         // otherwise use the postMessage interface
-        const { data } = processIpcMessage({ cmd, callback, error, options, ...payload })
+        const { data } = processIpcMessage({ cmd, callback, error, options, payload })
         window.ipc.postMessage(data)
       }
     }
diff --git a/core/tauri/src/ipc/protocol.rs b/core/tauri/src/ipc/protocol.rs
index 60883c5c8..f0cd1d06e 100644
--- a/core/tauri/src/ipc/protocol.rs
+++ b/core/tauri/src/ipc/protocol.rs
@@ -127,7 +127,6 @@ fn handle_ipc_message<R: Runtime>(message: String, manager: &WindowManager<R>, l
       cmd: String,
       callback: CallbackFn,
       error: CallbackFn,
-      #[serde(flatten)]
       payload: serde_json::Value,
       options: Option<RequestOptions>,
     }
@@ -142,7 +141,6 @@ fn handle_ipc_message<R: Runtime>(message: String, manager: &WindowManager<R>, l
         cmd: String,
         callback: CallbackFn,
         error: CallbackFn,
-        #[serde(flatten)]
         payload: crate::utils::pattern::isolation::RawIsolationPayload<'a>,
         options: Option<RequestOptions>,
       }