Fixed typo
diff --git a/core/src/main/java/org/jclouds/chef/internal/ChefContextImpl.java b/core/src/main/java/org/jclouds/chef/internal/ChefContextImpl.java
index ca1a244..0b18962 100644
--- a/core/src/main/java/org/jclouds/chef/internal/ChefContextImpl.java
+++ b/core/src/main/java/org/jclouds/chef/internal/ChefContextImpl.java
@@ -48,7 +48,7 @@
    protected ChefContextImpl(@Provider Context backend, @Provider TypeToken<? extends Context> backendType,
          ChefService chefService) {
       super(backend, backendType);
-      this.chefService = checkNotNull(chefService, "checkNotNull");
+      this.chefService = checkNotNull(chefService, "chefService");
    }
 
    @Override