diff --git a/interface/src/project/validators.ts b/interface/src/project/validators.ts
index b3420c04f..46226deba 100644
--- a/interface/src/project/validators.ts
+++ b/interface/src/project/validators.ts
@@ -392,8 +392,8 @@ export const temperatureSensorItemValidation = () =>
     n: [
       {
         type: 'string',
-        pattern: /^[a-zA-Z0-9_\\.]{0,15}$/,
-        message: "Must be <15 characters: alpha numeric, '_' or '.'"
+        pattern: /^[a-zA-Z0-9_\\.]{0,17}$/,
+        message: "Must be <18 characters: alpha numeric, '_' or '.'"
       }
     ]
   });