diff --git a/src/app/views/adapters/adapters.component.ts b/src/app/views/adapters/adapters.component.ts
index 42e22099..c2836855 100644
--- a/src/app/views/adapters/adapters.component.ts
+++ b/src/app/views/adapters/adapters.component.ts
@@ -316,7 +316,7 @@ export class AdaptersComponent implements OnInit, OnDestroy {
             if (errors.required) {
                 return 'missing unique name';
             } else if (errors.pattern) {
-                return 'invalid unique name: unique name must only contain lower case letters, digits and underscores';
+                return 'invalid unique name: unique name must only contain lower case letters and digits';
             } else if (errors.unique) {
                 return 'name is not unique';
             }