diff --git a/src/proto/Perception.js b/src/proto/Perception.js
index b7736748..70a115ab 100644
--- a/src/proto/Perception.js
+++ b/src/proto/Perception.js
@@ -83,8 +83,8 @@ export class Perception {
     }
     inputs.forEach((input) => {
       if (input === null || input === undefined || typeof input !== 'number' || !isFinite(input)) {
-        throw new TypeError('all inputs must be finite numbers');
+        throw new TypeError('all inputs must be valid finite numbers');
       }
     });
   }
-}
\ No newline at end of file
+}