diff --git a/src/views/chat/index.vue b/src/views/chat/index.vue
index 9ed9fdd..f0e85dd 100644
--- a/src/views/chat/index.vue
+++ b/src/views/chat/index.vue
@@ -115,7 +115,7 @@ async function onConversation() {
           const xhr = event.target
           const { responseText } = xhr
           // Always process the final line
-          const lastIndex = responseText.lastIndexOf('\n')
+          const lastIndex = responseText.lastIndexOf('\n', responseText.length - 2)
           let chunk = responseText
           if (lastIndex !== -1)
             chunk = responseText.substring(lastIndex)
@@ -245,7 +245,7 @@ async function onRegenerate(index: number) {
           const xhr = event.target
           const { responseText } = xhr
           // Always process the final line
-          const lastIndex = responseText.lastIndexOf('\n')
+          const lastIndex = responseText.lastIndexOf('\n', responseText.length - 2)
           let chunk = responseText
           if (lastIndex !== -1)
             chunk = responseText.substring(lastIndex)