diff --git a/app/soapbox/components/autosuggest_account_input.tsx b/app/soapbox/components/autosuggest_account_input.tsx
index d437e79fc3..f58e376235 100644
--- a/app/soapbox/components/autosuggest_account_input.tsx
+++ b/app/soapbox/components/autosuggest_account_input.tsx
@@ -59,7 +59,7 @@ const AutosuggestAccountInput: React.FC<IAutosuggestAccountInput> = ({
     onChange(e);
   };
 
-  const handleSelected = (_tokenStart: string, _lastToken: string, accountId: string) => {
+  const handleSelected = (_tokenStart: number, _lastToken: string | null, accountId: string) => {
     onSelected(accountId);
   };
 
diff --git a/app/soapbox/components/autosuggest_input.js b/app/soapbox/components/autosuggest_input.tsx
similarity index 71%
rename from app/soapbox/components/autosuggest_input.js
rename to app/soapbox/components/autosuggest_input.tsx
index a252eb537c..493b541a67 100644
Binary files a/app/soapbox/components/autosuggest_input.js and b/app/soapbox/components/autosuggest_input.tsx differ