diff --git a/tauri-wallet/src/routes/internal-docs/ApiList.tsx b/tauri-wallet/src/routes/internal-docs/ApiList.tsx
index a679a3618a..6bfad2ddaf 100644
--- a/tauri-wallet/src/routes/internal-docs/ApiList.tsx
+++ b/tauri-wallet/src/routes/internal-docs/ApiList.tsx
@@ -147,7 +147,7 @@ export const ApiList = () => {
         <DocEntry
           function={{
             name: "get_fee",
-            args: [{name: "operation", type: "object"}],
+            args: [{name: "operation", type: "str"}],
           }}
         />
       </ListItem>