diff --git a/src/renderer/src/providers/OpenAIProvider.ts b/src/renderer/src/providers/OpenAIProvider.ts
index 83bf8dc7f1..ecfebc02a3 100644
--- a/src/renderer/src/providers/OpenAIProvider.ts
+++ b/src/renderer/src/providers/OpenAIProvider.ts
@@ -279,6 +279,9 @@ export default class OpenAIProvider extends BaseProvider {
   async translate(message: Message, assistant: Assistant, onResponse?: (text: string) => void) {
     const defaultModel = getDefaultModel()
     const model = assistant.model || defaultModel
+    if (!message.content) {
+        message.content = ' '
+    }
     const messages = [
       { role: 'system', content: assistant.prompt },
       { role: 'user', content: message.content }