diff --git a/wwwroot/app.js b/wwwroot/app.js
index d5d2390..c19abf6 100644
--- a/wwwroot/app.js
+++ b/wwwroot/app.js
@@ -367,14 +367,38 @@ function bindNavButtons() {
 
   const finalizeBtn = $("finalize-votes");
   if (finalizeBtn) {
+    const finalizeVotes = async (desired) => {
+      await api.finalizeVotes(desired);
+      state.votesFinal = desired;
+      renderPhasePill();
+      renderVotes();
+      toast(desired ? t("vote.finalize") : t("vote.unfinalize"));
+    };
+
+    const missingVotes = () => {
+      const votedIds = new Set((state.myVotes ?? []).map((v) => v.suggestionId));
+      return (state.allSuggestions ?? []).filter((s) => !votedIds.has(s.id));
+    };
+
     finalizeBtn.addEventListener("click", async () => {
       try {
         const desired = !state.votesFinal;
-        await api.finalizeVotes(desired);
-        state.votesFinal = desired;
-        renderPhasePill();
-        renderVotes();
-        toast(desired ? t("vote.finalize") : t("vote.unfinalize"));
+        if (desired) {
+          const missing = missingVotes();
+          if (missing.length > 0) {
+            openConfirmModal({
+              title: t("vote.finalizeMissingTitle"),
+              body: t("vote.finalizeMissingBody", { count: missing.length }),
+              confirmLabel: t("vote.finalizeMissingConfirm"),
+              onConfirm: async (close) => {
+                await finalizeVotes(desired);
+                close();
+              },
+            });
+            return;
+          }
+        }
+        await finalizeVotes(desired);
       } catch (err) {
         toast(err.message, true);
       }
diff --git a/wwwroot/js/i18n.js b/wwwroot/js/i18n.js
index b8e3451..e35b382 100644
--- a/wwwroot/js/i18n.js
+++ b/wwwroot/js/i18n.js
@@ -88,6 +88,9 @@ const translations = {
     "vote.unfinalize": "Edit votes",
     "vote.finalHint": "Finalize when you’re done. You can unfinalize to change scores.",
     "vote.waitAdmin": "Waiting for admin to unlock results.",
+    "vote.finalizeMissingTitle": "Finalize with missing votes?",
+    "vote.finalizeMissingBody": "You still have {count} game(s) without a score. Finalizing will mark you as done while those stay unrated.",
+    "vote.finalizeMissingConfirm": "Finalize anyway",
 
     "results.rank": "Rank",
     "results.game": "Game",
@@ -250,6 +253,9 @@ const translations = {
     "vote.unfinalize": "Abstimmung bearbeiten",
     "vote.finalHint": "Schließe ab, wenn du fertig bist. Zum Ändern wieder öffnen.",
     "vote.waitAdmin": "Warten, bis der Admin die Ergebnisse freigibt.",
+    "vote.finalizeMissingTitle": "Mit fehlenden Stimmen abschließen?",
+    "vote.finalizeMissingBody": "Für {count} Spiel(e) fehlt noch eine Wertung. Beim Abschließen gilt deine Abstimmung als fertig, obwohl diese Spiele unbewertet bleiben.",
+    "vote.finalizeMissingConfirm": "Trotzdem abschließen",
 
     "results.rank": "Rang",
     "results.game": "Spiel",