diff --git a/.changeset/rare-timers-argue.md b/.changeset/rare-timers-argue.md
new file mode 100644
index 0000000000..ab90f959db
--- /dev/null
+++ b/.changeset/rare-timers-argue.md
@@ -0,0 +1,5 @@
+---
+"@heroui/number-input": patch
+---
+
+Fixed NumberInput label class being incorrectly mixed into the description (#5489).
diff --git a/packages/components/number-input/src/use-number-input.ts b/packages/components/number-input/src/use-number-input.ts
index ae0d87f295..fe9be28e00 100644
--- a/packages/components/number-input/src/use-number-input.ts
+++ b/packages/components/number-input/src/use-number-input.ts
@@ -458,7 +458,7 @@ export function useNumberInput(originalProps: UseNumberInputProps) {
         ...props,
         ...descriptionProps,
         "data-slot": "description",
-        className: slots.description({class: clsx(classNames?.label, props?.className)}),
+        className: slots.description({class: clsx(classNames?.description, props?.className)}),
       };
     },
     [slots, classNames?.description],