diff --git a/ionic/components/loading/loading.ts b/ionic/components/loading/loading.ts
index 727403bb173..1efbde056e2 100644
--- a/ionic/components/loading/loading.ts
+++ b/ionic/components/loading/loading.ts
@@ -224,6 +224,7 @@ class LoadingCmp {
 export interface LoadingOptions {
   spinner?: string;
   content?: string;
+  cssClass?: string;
   showBackdrop?: boolean;
   dismissOnPageChange?: boolean;
   delay?: number;
diff --git a/ionic/components/loading/test/basic/index.ts b/ionic/components/loading/test/basic/index.ts
index cb2df2c44cb..93933b0f1ba 100644
--- a/ionic/components/loading/test/basic/index.ts
+++ b/ionic/components/loading/test/basic/index.ts
@@ -10,7 +10,8 @@ class E2EPage {
   presentLoadingIos() {
     let loading = Loading.create({
       spinner: 'ios',
-      duration: 1000
+      duration: 1000,
+      cssClass: 'my-custom-loader'
     });
 
     loading.onDismiss(() => {