diff --git a/src/types.ts b/src/types.ts
index 834f3f2..75271b9 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -63,9 +63,6 @@ export interface PromptFormat {
 // and extensible persona format of our own
 //  https://github.com/TavernAI/TavernAI/tree/main
 export interface Persona {
-  // avatarUrl
-  avatarUrl: string;
-
   // Persona name
   name: string;
 
@@ -74,7 +71,7 @@ export interface Persona {
 }
 
 // Common model definition across different engine types
-// Defines resource, paramterization, persona, and prompt formatting
+// Defines resource, parameterization, persona, and prompt formatting
 // for the model
 export interface Model {
   /* Resource definition */
@@ -109,6 +106,6 @@ export type KnowledgeStoreConfig = {
   embeddingApiUrl: string;
   // Name of the local store to use
   storeName: string;
-  // Special key that identifies docuements metadata in the store
+  // Special key that identifies documents metadata in the store
   documentsKey: string;
 };