1 files changed, 1 insertions, 1 deletions
diff --git a/lib/inspector.js b/lib/inspector.js
index 775629c0f5..091e0e5fc9 100644
--- a/lib/inspector.js
+++ b/lib/inspector.js
@@ -56,7 +56,7 @@ class Session extends EventEmitter {
     }
     if (params && typeof params !== 'object') {
       throw new errors.TypeError('ERR_INVALID_ARG_TYPE',
-                                 'params', 'object', params);
+                                 'params', 'Object', params);
     }
     if (callback && typeof callback !== 'function') {
       throw new errors.TypeError('ERR_INVALID_CALLBACK');