diff --git a/conda/js/src/helpers/schema/plotterparameter.json b/conda/js/src/helpers/schema/plotterparameter.json
index a6c1f3910937186d362cd6999e2b3fd8bfae8863..59760635cd341736e004d2856265cacf5c7abc18 100644
--- a/conda/js/src/helpers/schema/plotterparameter.json
+++ b/conda/js/src/helpers/schema/plotterparameter.json
@@ -16,5 +16,6 @@
                 "data": {
                         "$ref": "experiment#/definitions/parameter_set"
                 }
-        }
+        },
+		"required": ["plotter"]
 }