diff --git a/package.json b/package.json
index 99bc4fc..1931916 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,9 @@
   },
   "keywords": [
     "required",
-    "substring",
+    "str",
     "string",
+    "substring",
     "sum"
   ],
   "author": "Pierre-Emmanuel Lévesque <pierre.e.levesque@gmail.com>",