diff --git a/frontend/src/components/SyncModal.tsx b/frontend/src/components/SyncModal.tsx
index 2926347..d90469b 100644
--- a/frontend/src/components/SyncModal.tsx
+++ b/frontend/src/components/SyncModal.tsx
@@ -34,9 +34,14 @@ export function SyncModal({ onClose }: { onClose: () => void }) {
         .then((s) => {
           setStatus(s);
           setError(null);
+          // Once a fetched status reports the sync finished, stop polling --
+          // the final result is already shown, and there's nothing new left
+          // to fetch until the user starts another sync ("Close" unmounts
+          // this component, which is the only other way polling stops).
+          if (!stoppedRef.current && s.in_progress) timeout = setTimeout(tick, 1500);
         })
-        .catch((e) => setError(String(e)))
-        .finally(() => {
+        .catch((e) => {
+          setError(String(e));
           if (!stoppedRef.current) timeout = setTimeout(tick, 1500);
         });
     };