diff --git a/polyglot/convertAdapter.json b/polyglot/convertAdapter.json
index 735f6eec..5c9fdbff 100644
--- a/polyglot/convertAdapter.json
+++ b/polyglot/convertAdapter.json
@@ -76,6 +76,16 @@
 				"to": {
 					"hasMaxLength": true
 				}
+			},
+			{
+				"from": {
+					"type": "variant"
+				},
+				"to": {
+					"type": "binary",
+					"childType": "blob",
+					"mode": "variant"
+				}
 			}
 		]
 	}
diff --git a/types/variant.json b/types/variant.json
index 9f92cf39..b98eda65 100644
--- a/types/variant.json
+++ b/types/variant.json
@@ -10,6 +10,7 @@
 		"name": "variant",
 		"jsonRoot": true
 	},
+	"restrictNormalization": true,
 	"defaultValues": {
 		"primaryKey": false,
 		"mode": "var",