diff --git a/crates/forge/tests/cli/script.rs b/crates/forge/tests/cli/script.rs
index 465d3db337590..21f7fe7ab282c 100644
--- a/crates/forge/tests/cli/script.rs
+++ b/crates/forge/tests/cli/script.rs
@@ -1952,7 +1952,7 @@ contract SimpleScript is Script {
     ])
     .assert_success()
     .stdout_eq(str![[r#"
-{"logs":[],"returns":{"success":{"internal_type":"bool","value":"true"}},"success":true,"raw_logs":[],"traces":[["Deployment",{"arena":[{"parent":null,"children":[],"idx":0,"trace":{"depth":0,"success":true,"caller":"0x1804c8ab1f12e6bbf3894d4083f33e07309d1f38","address":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","maybe_precompile":false,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CREATE","value":"0x0","data":"[..]","output":"[..]","gas_used":"{...}","gas_limit":"{...}","status":"Return","steps":[],"decoded":{"label":null,"return_data":null,"call_data":null}},"logs":[],"ordering":[]}]}],["Execution",{"arena":[{"parent":null,"children":[1,2],"idx":0,"trace":{"depth":0,"success":true,"caller":"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266","address":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","maybe_precompile":null,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CALL","value":"0x0","data":"0xc0406226","output":"0x0000000000000000000000000000000000000000000000000000000000000001","gas_used":"{...}","gas_limit":1073720760,"status":"Return","steps":[],"decoded":{"label":null,"return_data":null,"call_data":null}},"logs":[],"ordering":[{"Call":0},{"Call":1}]},{"parent":0,"children":[],"idx":1,"trace":{"depth":1,"success":true,"caller":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","address":"0x7109709ecfa91a80626ff3989d68f67f5b1dd12d","maybe_precompile":null,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CALL","value":"0x0","data":"0x7fb5297f","output":"0x","gas_used":"{...}","gas_limit":1056940994,"status":"Return","steps":[],"decoded":{"label":null,"return_data":null,"call_data":null}},"logs":[],"ordering":[]},{"parent":0,"children":[],"idx":2,"trace":{"depth":1,"success":true,"caller":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","address":"0x0000000000000000000000000000000000000000","maybe_precompile":null,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CALL","value":"0x0","data":"0x","output":"0x","gas_used":"{...}","gas_limit":1056940645,"status":"Stop","steps":[],"decoded":{"label":null,"return_data":null,"call_data":null}},"logs":[],"ordering":[]}]}]],"gas_used":"{...}","labeled_addresses":{},"returned":"0x0000000000000000000000000000000000000000000000000000000000000001","address":null}
+{"logs":[],"returns":{"success":{"internal_type":"bool","value":"true"}},"success":true,"raw_logs":[],"traces":[["Deployment",{"arena":[{"parent":null,"children":[],"idx":0,"trace":{"depth":0,"success":true,"caller":"0x1804c8ab1f12e6bbf3894d4083f33e07309d1f38","address":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","maybe_precompile":false,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CREATE","value":"0x0","data":"[..]","output":"[..]","gas_used":"{...}","gas_limit":"{...}","status":"Return","steps":[],"decoded":{"label":"SimpleScript","return_data":null,"call_data":null}},"logs":[],"ordering":[]}]}],["Execution",{"arena":[{"parent":null,"children":[1,2],"idx":0,"trace":{"depth":0,"success":true,"caller":"0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266","address":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","maybe_precompile":null,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CALL","value":"0x0","data":"0xc0406226","output":"0x0000000000000000000000000000000000000000000000000000000000000001","gas_used":"{...}","gas_limit":1073720760,"status":"Return","steps":[],"decoded":{"label":"SimpleScript","return_data":"true","call_data":{"signature":"run()","args":[]}}},"logs":[],"ordering":[{"Call":0},{"Call":1}]},{"parent":0,"children":[],"idx":1,"trace":{"depth":1,"success":true,"caller":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","address":"0x7109709ecfa91a80626ff3989d68f67f5b1dd12d","maybe_precompile":null,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CALL","value":"0x0","data":"0x7fb5297f","output":"0x","gas_used":"{...}","gas_limit":1056940994,"status":"Return","steps":[],"decoded":{"label":"VM","return_data":null,"call_data":{"signature":"startBroadcast()","args":[]}}},"logs":[],"ordering":[]},{"parent":0,"children":[],"idx":2,"trace":{"depth":1,"success":true,"caller":"0x5b73c5498c1e3b4dba84de0f1833c4a029d90519","address":"0x0000000000000000000000000000000000000000","maybe_precompile":null,"selfdestruct_address":null,"selfdestruct_refund_target":null,"selfdestruct_transferred_value":null,"kind":"CALL","value":"0x0","data":"0x","output":"0x","gas_used":"{...}","gas_limit":1056940645,"status":"Stop","steps":[],"decoded":{"label":null,"return_data":null,"call_data":{"signature":"fallback()","args":[]}}},"logs":[],"ordering":[]}]}]],"gas_used":"{...}","labeled_addresses":{},"returned":"0x0000000000000000000000000000000000000000000000000000000000000001","address":null}
 {"chain":31337,"estimated_gas_price":"{...}","estimated_total_gas_used":"{...}","estimated_amount_required":"{...}","token_symbol":"ETH"}
 {"chain":"anvil-hardhat","status":"success","tx_hash":"0x4f78afe915fceb282c7625a68eb350bc0bf78acb59ad893e5c62b710a37f3156","contract_address":null,"block_number":1,"gas_used":"{...}","gas_price":"{...}"}
 {"status":"success","transactions":"[..]/broadcast/Foo.sol/31337/run-latest.json","sensitive":"[..]/cache/Foo.sol/31337/run-latest.json"}
diff --git a/crates/script/src/execute.rs b/crates/script/src/execute.rs
index 863044f548b0e..8d5bea0abb77c 100644
--- a/crates/script/src/execute.rs
+++ b/crates/script/src/execute.rs
@@ -386,13 +386,31 @@ impl ExecutedState {
 }
 
 impl PreSimulationState {
-    pub fn show_json(&self) -> Result<()> {
+    pub async fn show_json(&self) -> Result<()> {
         let result = &self.execution_result;
+        let decoder = &self.execution_artifacts.decoder;
+        let mut traces = result.traces.clone();
+
+        for (_, trace) in &mut traces {
+            decode_trace_arena(trace, decoder).await?;
+        }
+
+        let result_with_decoded_traces = &ScriptResult {
+            success: result.success,
+            gas_used: result.gas_used,
+            logs: result.logs.clone(),
+            traces,
+            labeled_addresses: result.labeled_addresses.clone(),
+            returned: result.returned.clone(),
+            transactions: result.transactions.clone(),
+            breakpoints: result.breakpoints.clone(),
+            address: result.address,
+        };
 
         let json_result = JsonResult {
             logs: decode_console_logs(&result.logs),
             returns: &self.execution_artifacts.returns,
-            result,
+            result: result_with_decoded_traces,
         };
         let json = serde_json::to_string(&json_result)?;
         sh_println!("{json}")?;
diff --git a/crates/script/src/lib.rs b/crates/script/src/lib.rs
index 60a68990bbdf7..6d573fdf8e5a6 100644
--- a/crates/script/src/lib.rs
+++ b/crates/script/src/lib.rs
@@ -266,7 +266,7 @@ impl ScriptArgs {
             }
 
             if shell::is_json() {
-                pre_simulation.show_json()?;
+                pre_simulation.show_json().await?;
             } else {
                 pre_simulation.show_traces().await?;
             }