diff --git a/apps/baseline/src/app/app.component.ts b/apps/baseline/src/app/app.component.ts
index 2866110..7121e60 100644
--- a/apps/baseline/src/app/app.component.ts
+++ b/apps/baseline/src/app/app.component.ts
@@ -51,8 +51,8 @@ export class AppComponent implements OnInit, OnDestroy {
       model.addresses.forEach(addr => {
         addresses.push(
           this.fb.group({
-            line1: [addr ? addr.line_1 : ''],
-            line2: [addr ? addr.line_2 : ''],
+            line1: [addr ? addr.line1 : ''],
+            line2: [addr ? addr.line2 : ''],
             city: [addr ? addr.city : ''],
             state: [addr ? addr.state : ''],
             postalCode: [addr ? addr.postalCode : ''],
diff --git a/apps/parent-form/src/app/address/address.component.ts b/apps/parent-form/src/app/address/address.component.ts
index 34e765e..9f77db2 100644
--- a/apps/parent-form/src/app/address/address.component.ts
+++ b/apps/parent-form/src/app/address/address.component.ts
@@ -18,8 +18,8 @@ export class AddressComponent implements OnInit {
 
   ngOnInit() {
     this.group = this.fb.group({
-      line1: [this.address ? this.address.line_1 : ''],
-      line2: [this.address ? this.address.line_2 : ''],
+      line1: [this.address ? this.address.line1 : ''],
+      line2: [this.address ? this.address.line2 : ''],
       city: [this.address ? this.address.city : ''],
       state: [this.address ? this.address.state : ''],
       postalCode : [this.address ? this.address.postalCode : ''],
diff --git a/libs/contact/src/lib/contact-model.ts b/libs/contact/src/lib/contact-model.ts
index 1be95b7..40c8fc6 100644
--- a/libs/contact/src/lib/contact-model.ts
+++ b/libs/contact/src/lib/contact-model.ts
@@ -7,8 +7,8 @@ export interface Name {
 }
 
 export interface Address {
-  line_1: string;
-  line_2: string;
+  line1: string;
+  line2: string;
   city: string;
   state: string;
   postalCode: string;
diff --git a/libs/contact/src/lib/services/contact-form.service.ts b/libs/contact/src/lib/services/contact-form.service.ts
index 67be0f9..7a0d56e 100644
--- a/libs/contact/src/lib/services/contact-form.service.ts
+++ b/libs/contact/src/lib/services/contact-form.service.ts
@@ -28,8 +28,8 @@ export class ContactFormService {
       model.addresses.forEach(addr => {
         addresses.push(
           this.fb.group({
-            line1: [addr ? addr.line_1 : ''],
-            line2: [addr ? addr.line_2 : ''],
+            line1: [addr ? addr.line1 : ''],
+            line2: [addr ? addr.line2 : ''],
             city: [addr ? addr.city : ''],
             state: [addr ? addr.state : ''],
             postalCode: [addr ? addr.postalCode : ''],
diff --git a/libs/contact/src/lib/services/contact.service.ts b/libs/contact/src/lib/services/contact.service.ts
index 282a559..574372a 100644
--- a/libs/contact/src/lib/services/contact.service.ts
+++ b/libs/contact/src/lib/services/contact.service.ts
@@ -13,15 +13,15 @@ const contact: Contact = {
   },
   addresses: [
     {
-      line_1: '123 Main Street',
-      line_2: null,
+      line1: '123 Main Street',
+      line2: null,
       city: 'New York',
       state: 'NY',
       postalCode: '12345',
     },
     {
-      line_1: '123 South Street',
-      line_2: null,
+      line1: '123 South Street',
+      line2: null,
       city: 'Boston',
       state: 'MA',
       postalCode: '54321',