diff --git a/lib/Subscribers/ImportExport/Import/MailChimp.php b/lib/Subscribers/ImportExport/Import/MailChimp.php
index c5b9344505..dae8c50ef6 100644
--- a/lib/Subscribers/ImportExport/Import/MailChimp.php
+++ b/lib/Subscribers/ImportExport/Import/MailChimp.php
@@ -83,10 +83,8 @@ class MailChimp {
             }
             if(!isset($header_hash)) {
               $header_hash = md5(implode(',', $header));
-            } else {
-              if(md5(implode(',', $header) !== $header_hash)) {
-                return $this->throwException('headers');
-              }
+            } elseif(md5(implode(',', $header) !== $header_hash)) {
+              return $this->throwException('headers');
             }
           } else {
             $subscribers[] = $obj;
@@ -147,4 +145,4 @@ class MailChimp {
     }
     throw new \Exception($errorMessage);
   }
-}
\ No newline at end of file
+}