diff --git a/packages/cli/src/Server.ts b/packages/cli/src/Server.ts
index 1b3750a20..cc87aa897 100644
--- a/packages/cli/src/Server.ts
+++ b/packages/cli/src/Server.ts
@@ -1194,6 +1194,15 @@ class App {
 
 			let options = {};
 
+			const oAuth2Parameters = {
+				clientId: _.get(oauthCredentials, 'clientId') as string,
+				clientSecret: _.get(oauthCredentials, 'clientSecret', '') as string,
+				accessTokenUri: _.get(oauthCredentials, 'accessTokenUrl', '') as string,
+				authorizationUri: _.get(oauthCredentials, 'authUrl', '') as string,
+				redirectUri: `${WebhookHelpers.getWebhookBaseUrl()}${this.restEndpoint}/oauth2-credential/callback`,
+				scopes: _.split(_.get(oauthCredentials, 'scope', 'openid,') as string, ',')
+			};
+
 			if (_.get(oauthCredentials, 'authentication', 'header') as string === 'body') {
 				options = {
 					body: {
@@ -1201,16 +1210,10 @@ class App {
 						client_secret: _.get(oauthCredentials, 'clientSecret', '') as string,
 					},
 				};
+				delete oAuth2Parameters.clientSecret;
 			}
 
-			const oAuthObj = new clientOAuth2({
-				clientId: _.get(oauthCredentials, 'clientId') as string,
-				clientSecret: _.get(oauthCredentials, 'clientSecret', '') as string,
-				accessTokenUri: _.get(oauthCredentials, 'accessTokenUrl', '') as string,
-				authorizationUri: _.get(oauthCredentials, 'authUrl', '') as string,
-				redirectUri: `${WebhookHelpers.getWebhookBaseUrl()}${this.restEndpoint}/oauth2-credential/callback`,
-				scopes: _.split(_.get(oauthCredentials, 'scope', 'openid,') as string, ',')
-			});
+			const oAuthObj = new clientOAuth2(oAuth2Parameters);
 
 			const oauthToken = await oAuthObj.code.getToken(req.originalUrl, options);
 
diff --git a/packages/nodes-base/credentials/BitlyOAuth2Api.credentials.ts b/packages/nodes-base/credentials/BitlyOAuth2Api.credentials.ts
index 2ba8ba3d3..0919e3063 100644
--- a/packages/nodes-base/credentials/BitlyOAuth2Api.credentials.ts
+++ b/packages/nodes-base/credentials/BitlyOAuth2Api.credentials.ts
@@ -7,7 +7,7 @@ import {
 export class BitlyOAuth2Api implements ICredentialType {
 	name = 'bitlyOAuth2Api';
     displayName = 'Bitly OAuth2 API';
-    
+
     extends = [
 		'oAuth2Api',
 	];
@@ -55,25 +55,13 @@ export class BitlyOAuth2Api implements ICredentialType {
 			type: 'hidden' as NodePropertyTypes,
 			default: '',
 			description: 'For some services additional query parameters have to be set which can be defined here.',
-			placeholder: 'access_type=offline',
+			placeholder: '',
 		},
 		{
 			displayName: 'Authentication',
 			name: 'authentication',
-			type: 'options' as NodePropertyTypes,
-			options: [
-				{
-					name: 'Body',
-					value: 'body',
-					description: 'Send credentials in body',
-				},
-				{
-					name: 'Header',
-					value: 'header',
-					description: 'Send credentials as Basic Auth header',
-				},
-			],
-			default: 'header',
+			type: 'hidden' as NodePropertyTypes,
+			default: 'body',
 			description: 'Resource to consume.',
 		},
 	];
diff --git a/packages/nodes-base/nodes/Bitly/GenericFunctions.ts b/packages/nodes-base/nodes/Bitly/GenericFunctions.ts
index 85a2c7094..edc8873a1 100644
--- a/packages/nodes-base/nodes/Bitly/GenericFunctions.ts
+++ b/packages/nodes-base/nodes/Bitly/GenericFunctions.ts
@@ -33,7 +33,8 @@ export async function bitlyApiRequest(this: IHookFunctions | IExecuteFunctions |
 
 			return await this.helpers.request!(options);
 		} else {
-			return await this.helpers.requestOAuth2!.call(this, 'bitlyOAuth2Api', options);
+			//@ts-ignore
+			return await this.helpers.requestOAuth2!.call(this, 'bitlyOAuth2Api', options, 'Bearer');
 		}
 	} catch(error) {
 		throw new Error(error);