diff --git a/index.ts b/index.ts
index 6ebf5069..2a082381 100644
--- a/index.ts
+++ b/index.ts
@@ -37,7 +37,7 @@ export class TranslateModule {
             providers: [
                 providedLoader,
                 TranslateService,
-                { provide: TranslateParser, useClass: DefaultTranslateParser },
+                { provide: TranslateParser, useClass: DefaultTranslateParser }
             ]
         };
     }
diff --git a/src/util.ts b/src/util.ts
index 3f763576..55da72b6 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -25,7 +25,7 @@ export function equals(o1: any, o2: any): boolean {
             if(!Array.isArray(o2)) return false;
             if((length = o1.length) == o2.length) {
                 for(key = 0; key < length; key++) {
-                    if(!this.equals(o1[key], o2[key])) return false;
+                    if(!equals(o1[key], o2[key])) return false;
                 }
                 return true;
             }
@@ -35,7 +35,7 @@ export function equals(o1: any, o2: any): boolean {
             }
             keySet = Object.create(null);
             for(key in o1) {
-                if(!this.equals(o1[key], o2[key])) {
+                if(!equals(o1[key], o2[key])) {
                     return false;
                 }
                 keySet[key] = true;