diff --git a/js/api/anthropic.js b/js/api/anthropic.js
index cef59c96..1328ff5f 100644
--- a/js/api/anthropic.js
+++ b/js/api/anthropic.js
@@ -99,7 +99,7 @@ export class Anthropic {
               stream: this.stream,
             };
 
-      if(parseFloat(this.temperature) != NaN) claude_body.temperature = parseFloat(this.temperature);
+      if(this.temperature != '' && parseFloat(this.temperature) != NaN) claude_body.temperature = parseFloat(this.temperature);
 
       const response = await fetch("https://api.anthropic.com/v1/messages", {
           method: "POST",