diff --git a/ftl/core/deck-config.ftl b/ftl/core/deck-config.ftl
index 6e628796b..0deee416d 100644
--- a/ftl/core/deck-config.ftl
+++ b/ftl/core/deck-config.ftl
@@ -365,7 +365,9 @@ deck-config-reschedule-cards-on-change-tooltip =
     This option controls whether the due dates of cards will be changed when you enable FSRS, or change
     the weights. The default is not to reschedule cards: future reviews will use the new scheduling, but
     there will be no immediate change to your workload. If rescheduling is enabled, the due dates of cards
-    will be changed. Depending on your desired retention, this can result in a large number of cards becoming
+    will be changed.
+deck-config-reschedule-cards-warning =
+    Depending on your desired retention, this can result in a large number of cards becoming
     due, so is not recommended when first switching from SM2.
 deck-config-compute-optimal-weights-tooltip =
     Once you've done 1000+ reviews in Anki, you can use the Optimize button to analyze your review history,
diff --git a/ts/deck-options/FsrsOptions.svelte b/ts/deck-options/FsrsOptions.svelte
index 0bcf9276e..4aca091c6 100644
--- a/ts/deck-options/FsrsOptions.svelte
+++ b/ts/deck-options/FsrsOptions.svelte
@@ -22,6 +22,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     import type { DeckOptionsState } from "./lib";
     import SpinBoxFloatRow from "./SpinBoxFloatRow.svelte";
     import SpinBoxRow from "./SpinBoxRow.svelte";
+    import Warning from "./Warning.svelte";
     import WeightsInputRow from "./WeightsInputRow.svelte";
 
     export let state: DeckOptionsState;
@@ -237,6 +238,10 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
             {tr.deckConfigRescheduleCardsOnChange()}
         </SettingTitle>
     </SwitchRow>
+
+    {#if $config.rescheduleFsrsCards}
+        <Warning warning={tr.deckConfigRescheduleCardsWarning()} />
+    {/if}
 </div>
 
 <div class="m-2">