diff --git a/.changeset/tidy-moles-share.md b/.changeset/tidy-moles-share.md
new file mode 100644
index 0000000..0ca467c
--- /dev/null
+++ b/.changeset/tidy-moles-share.md
@@ -0,0 +1,5 @@
+---
+"@simsustech/quasar-components": patch
+---
+
+fix(QSubmitButton): set loading prop default to undefined
diff --git a/packages/components/src/ui/general/QSubmitButton.vue b/packages/components/src/ui/general/QSubmitButton.vue
index 37c7c0c..dfa7cbd 100644
--- a/packages/components/src/ui/general/QSubmitButton.vue
+++ b/packages/components/src/ui/general/QSubmitButton.vue
@@ -32,7 +32,8 @@ export interface Props {
 }
 const props = withDefaults(defineProps<Props>(), {
   type: 'submit',
-  color: 'primary'
+  color: 'primary',
+  loading: undefined
 })
 
 const { type, isNextButton } = toRefs(props)