diff --git a/src-tauri/src/opencode_config.rs b/src-tauri/src/opencode_config.rs
index beb43b607..4e659e874 100644
--- a/src-tauri/src/opencode_config.rs
+++ b/src-tauri/src/opencode_config.rs
@@ -61,7 +61,12 @@ pub fn read_opencode_config() -> Result<Value, AppError> {
     }
 
     let content = std::fs::read_to_string(&path).map_err(|e| AppError::io(&path, e))?;
-    serde_json::from_str(&content).map_err(|e| AppError::json(&path, e))
+    json5::from_str(&content).map_err(|e| {
+        AppError::Config(format!(
+            "Failed to parse OpenCode config: {}: {e}",
+            path.display()
+        ))
+    })
 }
 
 pub fn write_opencode_config(config: &Value) -> Result<(), AppError> {