diff --git a/packages/knip/schema.json b/packages/knip/schema.json
index f2a17d1f1..7498c0582 100644
--- a/packages/knip/schema.json
+++ b/packages/knip/schema.json
@@ -358,6 +358,10 @@
           "title": "Mocha plugin configuration (https://github.com/webpro/knip/blob/main/src/plugins/mocha/README.md)",
           "$ref": "#/definitions/plugin"
         },
+        "msw": {
+          "title": "Mocha plugin configuration (https://github.com/webpro/knip/blob/main/src/plugins/msw/README.md)",
+          "$ref": "#/definitions/plugin"
+        },
         "netlify": {
           "title": "Netlify plugin configuration (https://github.com/webpro/knip/blob/main/src/plugins/netlify/README.md)",
           "$ref": "#/definitions/plugin"
diff --git a/packages/knip/src/ConfigurationValidator.ts b/packages/knip/src/ConfigurationValidator.ts
index a590bf7b1..e76d7e979 100644
--- a/packages/knip/src/ConfigurationValidator.ts
+++ b/packages/knip/src/ConfigurationValidator.ts
@@ -98,6 +98,7 @@ const pluginsSchema = z.object({
   linthtml: pluginSchema,
   markdownlint: pluginSchema,
   mocha: pluginSchema,
+  msw: pluginSchema,
   netlify: pluginSchema,
   next: pluginSchema,
   'node-test-runner': pluginSchema,