diff --git a/app/src/api/services/domainLogic/validateUpdate.ts b/app/src/api/services/domainLogic/validateUpdate.ts
index 9910a898..b9e35d3a 100644
--- a/app/src/api/services/domainLogic/validateUpdate.ts
+++ b/app/src/api/services/domainLogic/validateUpdate.ts
@@ -24,9 +24,7 @@ function canEdit(key: string, allowDerived: boolean = false) {
 
 export function validateFieldChange(field: string, value: any, isExternal: boolean = true) {
     if(!isDefined(field)) {
-        if(field !== 'is_extension'){
-            throw new InvalidFieldError('Field does not exist', field);
-        }
+        throw new InvalidFieldError('Field does not exist', field);
     }
     
     const allowDerived = !isExternal;