diff --git a/docs/source/essentials/mutations.md b/docs/source/essentials/mutations.md
index 441ce9212bc..1ea54f73419 100644
--- a/docs/source/essentials/mutations.md
+++ b/docs/source/essentials/mutations.md
@@ -234,7 +234,7 @@ The Mutation component accepts the following props. Only `mutation` and `childre
If true, the `data` property on the render prop function will not update with the mutation result.
`optimisticResponse`: Object
Provide a [mutation response](../features/optimistic-ui.html) before the result comes back from the server
- `refetchQueries`: (mutationResult: FetchResult) => Array<{ query: DocumentNode, variables?: TVariables}>
+ `refetchQueries`: (mutationResult: FetchResult) => Array<{ query: DocumentNode, variables?: TVariables} | string>
A function that allows you to specify which queries you want to refetch after a mutation has occurred
`onCompleted`: (data: TData) => void
A callback executed once your mutation successfully completes