diff --git a/src/constants/default-settings.ts b/src/constants/default-settings.ts
index b90934fb51..ec47d8f1a7 100644
--- a/src/constants/default-settings.ts
+++ b/src/constants/default-settings.ts
@@ -6,7 +6,7 @@ export const DEFAULT_SYSTEM_PROMPT =
 export const DIAL_API_HOST = process.env.DIAL_API_HOST;
 
 export const DEFAULT_TEMPERATURE = parseFloat(
-  process.env.NEXT_PUBLIC_DEFAULT_TEMPERATURE || '1',
+  process.env.NEXT_PUBLIC_DEFAULT_TEMPERATURE ?? '1',
 );
 
 export const DEFAULT_CONVERSATION_NAME = 'New conversation';
diff --git a/src/pages/api/chat.ts b/src/pages/api/chat.ts
index 36c06eaeb1..b8ebade737 100644
--- a/src/pages/api/chat.ts
+++ b/src/pages/api/chat.ts
@@ -141,7 +141,9 @@ const handler = async (req: NextApiRequest, res: NextApiResponse) => {
     }
 
     let temperatureToUse = temperature;
-    if (temperatureToUse && model.type !== EntityType.Application) {
+    if (!temperatureToUse
+      && temperatureToUse !== 0
+      && model.type !== EntityType.Application) {
       temperatureToUse = DEFAULT_TEMPERATURE;
     }