diff --git a/invokeai/frontend/web/src/features/nodes/util/fieldTemplateBuilders.ts b/invokeai/frontend/web/src/features/nodes/util/fieldTemplateBuilders.ts
index 28a9c8ec7c..e1f65e8826 100644
--- a/invokeai/frontend/web/src/features/nodes/util/fieldTemplateBuilders.ts
+++ b/invokeai/frontend/web/src/features/nodes/util/fieldTemplateBuilders.ts
@@ -302,9 +302,20 @@ export const getFieldType = (
   if (typeHints && name in typeHints) {
     rawFieldType = typeHints[name];
   } else if (!schemaObject.type) {
-    rawFieldType = refObjectToFieldType(
-      schemaObject.allOf![0] as OpenAPIV3.ReferenceObject
-    );
+    // if schemaObject has no type, then it should have one of allOf, anyOf, oneOf
+    if (schemaObject.allOf) {
+      rawFieldType = refObjectToFieldType(
+        schemaObject.allOf![0] as OpenAPIV3.ReferenceObject
+      );
+    } else if (schemaObject.anyOf) {
+      rawFieldType = refObjectToFieldType(
+        schemaObject.anyOf![0] as OpenAPIV3.ReferenceObject
+      );
+    } else if (schemaObject.oneOf) {
+      rawFieldType = refObjectToFieldType(
+        schemaObject.oneOf![0] as OpenAPIV3.ReferenceObject
+      );
+    }
   } else if (schemaObject.enum) {
     rawFieldType = 'enum';
   } else if (schemaObject.type) {