diff --git a/application/extra/mines.php b/application/extra/mines.php
index 353505b30..0e7ed97b1 100644
--- a/application/extra/mines.php
+++ b/application/extra/mines.php
@@ -109,7 +109,8 @@ return [
     'xl'    => 'application/excel',
     'eml'   => 'message/rfc822',
     'json'  => ['application/json', 'text/json'],
-    'pem'   => ['application/x-x509-user-cert', 'application/x-x509-ca-cert', 'application/x-pem-file', 'application/octet-stream'],
+    'pem'   => ['application/x-x509-user-cert', 'application/x-x509-ca-cert', 'application/x-pem-file', 'application/pkix-cert'],
+    'crt'   => ['application/x-x509-user-cert', 'application/x-x509-ca-cert', 'application/pkix-cert'],
     'p10'   => ['application/x-pkcs10', 'application/pkcs10'],
     'p12'   => 'application/x-pkcs12',
     'p7a'   => 'application/x-pkcs7-signature',
@@ -117,7 +118,6 @@ return [
     'p7m'   => ['application/pkcs7-mime', 'application/x-pkcs7-mime'],
     'p7r'   => 'application/x-pkcs7-certreqresp',
     'p7s'   => 'application/pkcs7-signature',
-    'crt'   => ['application/x-x509-ca-cert', 'application/x-x509-user-cert', 'application/pkix-cert'],
     'crl'   => ['application/pkix-crl', 'application/pkcs-crl'],
     'der'   => 'application/x-x509-ca-cert',
     'kdb'   => 'application/octet-stream',