diff --git a/backend/internal/certificate.js b/backend/internal/certificate.js
index 3725c1c8..7776dbde 100644
--- a/backend/internal/certificate.js
+++ b/backend/internal/certificate.js
@@ -615,7 +615,7 @@ const internalCertificate = {
 	checkPrivateKey: (private_key) => {
 		return tempWrite(private_key, '/tmp')
 			.then((filepath) => {
-				let key_type = private_key.includes('-----BEGIN RSA') ? 'rsa' : 'ec';
+				let key_type = private_key.includes('-----BEGIN') ? 'rsa' : 'ec';
 				return utils.exec('openssl ' + key_type + ' -in ' + filepath + ' -check -noout 2>&1 ')
 					.then((result) => {
 						if (!result.toLowerCase().includes('key ok') && !result.toLowerCase().includes('key valid') ) {