diff --git a/src/accounts/accountForm.component.ts b/src/accounts/accountForm.component.ts
index 7d3800c..c841dab 100644
--- a/src/accounts/accountForm.component.ts
+++ b/src/accounts/accountForm.component.ts
@@ -16,7 +16,7 @@ import { Account } from './account';
     </label>
 
     <div class="col-sm-7"
-      [ngClass]="{'has-danger': name.errors}">
+      [class.has-danger]="name.errors">
       <input class="form-control"
         id="name" formControlName="name"
         placeholder="Account name">
@@ -33,7 +33,7 @@ import { Account } from './account';
     </label>
 
     <div class="col-sm-7"
-      [ngClass]="{'has-danger': authorizedOverdraft.errors}">
+      [class.has-danger]="authorizedOverdraft.errors">
       <div class="input-group">
         <input class="form-control"
           id="authorized-overdraft" formControlName="authorizedOverdraft"