diff --git a/ts/routes/deck-options/FsrsOptions.svelte b/ts/routes/deck-options/FsrsOptions.svelte
index 7a34d7ebe..fd1afd912 100644
--- a/ts/routes/deck-options/FsrsOptions.svelte
+++ b/ts/routes/deck-options/FsrsOptions.svelte
@@ -508,7 +508,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         <SpinBoxRow
             bind:value={simulateFsrsRequest.deckSize}
             defaultValue={0}
-            min={1}
+            min={0}
             max={100000}
         >
             <SettingTitle on:click={() => openHelpModal("simulateFsrsReview")}>
@@ -518,7 +518,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
         <SpinBoxRow
             bind:value={simulateFsrsRequest.newLimit}
-            defaultValue={defaults.newPerDay}
+            defaultValue={$config.newPerDay}
             min={0}
             max={9999}
         >
@@ -529,7 +529,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
         <SpinBoxRow
             bind:value={simulateFsrsRequest.reviewLimit}
-            defaultValue={defaults.reviewsPerDay}
+            defaultValue={$config.reviewsPerDay}
             min={0}
             max={9999}
         >
@@ -540,7 +540,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
         <SpinBoxRow
             bind:value={simulateFsrsRequest.maxInterval}
-            defaultValue={defaults.maximumReviewInterval}
+            defaultValue={$config.maximumReviewInterval}
             min={1}
             max={36500}
         >