diff --git a/src/NumberInput/NumberInput.svelte b/src/NumberInput/NumberInput.svelte
index 5b310e15..2b0f76ee 100644
--- a/src/NumberInput/NumberInput.svelte
+++ b/src/NumberInput/NumberInput.svelte
@@ -119,7 +119,7 @@
     } else {
       ref.stepDown();
     }
-    value = ref.value;
+    value = +ref.value;
 
     dispatch("input", value);
     dispatch("change", value);