diff --git a/static/js/stream_data.js b/static/js/stream_data.js
index fc39ca9461..e17c66008b 100644
--- a/static/js/stream_data.js
+++ b/static/js/stream_data.js
@@ -511,6 +511,10 @@ export function can_preview(sub) {
     return sub.subscribed || !sub.invite_only || sub.previously_subscribed;
 }
 
+export function can_change_permissions(sub) {
+    return page_params.is_admin && (!sub.invite_only || sub.subscribed);
+}
+
 export function is_subscribed(stream_name) {
     const sub = get_sub(stream_name);
     return sub !== undefined && sub.subscribed;
diff --git a/static/js/stream_settings_data.js b/static/js/stream_settings_data.js
index 129d21ada0..0b963733f7 100644
--- a/static/js/stream_settings_data.js
+++ b/static/js/stream_settings_data.js
@@ -53,8 +53,7 @@ export function update_calculated_fields(sub) {
 
     sub.should_display_subscription_button = stream_data.can_toggle_subscription(sub);
     sub.should_display_preview_button = stream_data.can_preview(sub);
-    sub.can_change_stream_permissions =
-        page_params.is_admin && (!sub.invite_only || sub.subscribed);
+    sub.can_change_stream_permissions = stream_data.can_change_permissions(sub);
     // User can add other users to stream if stream is public or user is subscribed to stream.
     // Guest users can't access subscribers of any(public or private) non-subscribed streams.
     sub.can_access_subscribers =