diff --git a/webui/src/pages/list/FilterToolbar.tsx b/webui/src/pages/list/FilterToolbar.tsx
index cfb93dc2e53fc10dbee0fe7aac632ff97e794b41..979bf5309ab85822d16d5be9ddbfbc7fd7ad66c4 100644
--- a/webui/src/pages/list/FilterToolbar.tsx
+++ b/webui/src/pages/list/FilterToolbar.tsx
@@ -165,7 +165,7 @@ function FilterToolbar({ query, queryLocation }: Props) {
       <FilterDropdown
         dropdown={identities}
         itemActive={(key) => hasValue('author', key)}
-        to={(key) => pipe(toggleParam('author', key), loc)(params)}
+        to={(key) => pipe(toggleOrAddParam('author', key), loc)(params)}
         hasFilter
       >
         Author