diff --git a/packages/nodes-base/credentials/MattermostApi.credentials.ts b/packages/nodes-base/credentials/MattermostApi.credentials.ts
index 62cd723607c68..afddc454fc7e1 100644
--- a/packages/nodes-base/credentials/MattermostApi.credentials.ts
+++ b/packages/nodes-base/credentials/MattermostApi.credentials.ts
@@ -26,6 +26,13 @@ export class MattermostApi implements ICredentialType {
 			type: 'string',
 			default: '',
 		},
+		{
+			displayName: 'Ignore SSL Issues',
+			name: 'allowUnauthorizedCerts',
+			type: 'boolean',
+			description: 'Whether to connect even if SSL certificate validation is not possible',
+			default: false,
+		},
 	];
 
 	authenticate: IAuthenticateGeneric = {
@@ -41,6 +48,7 @@ export class MattermostApi implements ICredentialType {
 		request: {
 			baseURL: '={{$credentials.baseUrl}}/api/v4',
 			url: '/users',
+			skipSslCertificateValidation: '={{$credentials?.allowUnauthorizedCerts}}',
 		},
 	};
 }
diff --git a/packages/nodes-base/nodes/Mattermost/v1/transport/index.ts b/packages/nodes-base/nodes/Mattermost/v1/transport/index.ts
index 2a5626edfe93f..b5f650da5ffc7 100644
--- a/packages/nodes-base/nodes/Mattermost/v1/transport/index.ts
+++ b/packages/nodes-base/nodes/Mattermost/v1/transport/index.ts
@@ -27,6 +27,7 @@ export async function apiRequest(
 		headers: {
 			'content-type': 'application/json; charset=utf-8',
 		},
+		skipSslCertificateValidation: credentials.allowUnauthorizedCerts as boolean,
 	};
 
 	return this.helpers.httpRequestWithAuthentication.call(this, 'mattermostApi', options);