diff --git a/src/core/friendly_errors/validate_params.js b/src/core/friendly_errors/validate_params.js
index bf98dca98b..459b5701a8 100644
--- a/src/core/friendly_errors/validate_params.js
+++ b/src/core/friendly_errors/validate_params.js
@@ -756,7 +756,7 @@ if (typeof IS_MINIFIED !== 'undefined') {
       }
     }
   };
-  p5.prototype._validateParameters = p5.validateParameters;
+  p5.prototype._validateParameters = p5._validateParameters;
 }
 
 export default p5;