diff --git a/schemas/rule-package.schema.json b/schemas/rule-package.schema.json
index b27815163e..b27136634f 100644
--- a/schemas/rule-package.schema.json
+++ b/schemas/rule-package.schema.json
@@ -342,7 +342,8 @@
                             "external/misra/c/2012/third-edition-first-revision",
                             "external/misra/c/2012/amendment2",
                             "external/misra/c/2012/amendment3",
-                            "external/misra/c/2012/amendment4"
+                            "external/misra/c/2012/amendment4",
+                            "external/misra/c/strict"
                         ]
                     },
                     "minLength": 1