diff --git a/src/ui/modals/ReadingLogEntryEditModalView.svelte b/src/ui/modals/ReadingLogEntryEditModalView.svelte
index 7fece64..eccde29 100644
--- a/src/ui/modals/ReadingLogEntryEditModalView.svelte
+++ b/src/ui/modals/ReadingLogEntryEditModalView.svelte
@@ -51,7 +51,7 @@
 	});
 
 	$effect(() => {
-		pagesRemaining = bookMetadata?.book.pageCount ?? 0 - pagesReadTotal;
+		pagesRemaining = (bookMetadata?.book.pageCount ?? 0) - pagesReadTotal;
 	});
 
 	$effect(() => {