diff --git a/knip.ts b/knip.ts
index 4376a9f8ac..31a3278ffc 100644
--- a/knip.ts
+++ b/knip.ts
@@ -45,6 +45,9 @@ const config: KnipConfig = {
         '@eslint/js',
         // used by Jest
         'jsdom',
+        // This is an optional peer dependency because users without RSC don't need it
+        // but Knip doesn't like such dependencies to be referenced directly in code
+        'react-on-rails-rsc',
       ],
     },
     'spec/dummy': {
diff --git a/package.json b/package.json
index 55cd86fea1..4dd0396936 100644
--- a/package.json
+++ b/package.json
@@ -78,6 +78,11 @@
     "react-dom": ">= 16",
     "react-on-rails-rsc": "19.0.2"
   },
+  "peerDependenciesMeta": {
+    "react-on-rails-rsc": {
+      "optional": true
+    }
+  },
   "files": [
     "node_package/lib"
   ],