diff --git a/libcockatrice_card/libcockatrice/card/set/card_set_list.cpp b/libcockatrice_card/libcockatrice/card/set/card_set_list.cpp
index 6a541bc16..b11d6deb5 100644
--- a/libcockatrice_card/libcockatrice/card/set/card_set_list.cpp
+++ b/libcockatrice_card/libcockatrice/card/set/card_set_list.cpp
@@ -128,9 +128,9 @@ void CardSetList::markAllAsKnownBatched(ICardSetPriorityController *controller)
             continue;
         }
 
-        if (!set->getIsKnown() && !set->getIsKnownIgnored()) {
+        if (!set->getIsKnown()) {
             set->setIsKnownInMemory(true);
-            set->setEnabledInMemory(false);
+            set->setEnabledInMemory(set->getIsKnownIgnored());
             saveData.append({set->getShortName(), static_cast<unsigned int>(set->getSortKey()), set->getEnabled(),
                              set->getIsKnown()});
         }
diff --git a/tests/carddatabase/carddatabase_test.cpp b/tests/carddatabase/carddatabase_test.cpp
index 350d9be7e..0a99edaa1 100644
--- a/tests/carddatabase/carddatabase_test.cpp
+++ b/tests/carddatabase/carddatabase_test.cpp
@@ -663,6 +663,24 @@ TEST_F(CardDatabaseCacheInvalidationTest, MarkAllSetsAsKnownIsBatched)
     EXPECT_TRUE(controller.isEnabled("XXX"));
 }
 
+TEST_F(CardDatabaseCacheInvalidationTest, MarkAllSetsAsKnownDoesNotOverwriteSettings)
+{
+    SeededSetPriorityController controller;
+    CardSetList sets;
+    sets.append(CardSet::newInstance(&controller, "XXX")); // no metadata: ignored
+
+    // Ignored sets keep their known state but are enabled.
+    sets.markAllAsKnownBatched(&controller);
+    EXPECT_TRUE(controller.isEnabled("XXX")) << "unnamed set starts enabled";
+
+    // disable the set
+    controller.setEnabled("XXX", false);
+
+    // set should still be disabled after batching
+    sets.markAllAsKnownBatched(&controller);
+    EXPECT_FALSE(controller.isEnabled("XXX")) << "unnamed set should still be disabled after marking";
+}
+
 TEST_F(CardDatabaseCacheInvalidationTest, ReloadReleasesPreviousSnapshot)
 {
     NoopCardPreferenceProvider prefs;