diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index ece06dd0ab8b7496b97879a83cc90834dbe159d2..796dcd7e88fb92215ecbbe960cd03026b5cba83a 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -283,7 +283,7 @@ (define-public offlineimap
      "OfflineImap synchronizes emails between two repositories, so that you
 can read the same mailbox from multiple computers.  It supports IMAP as REMOTE
 repository and Maildir/IMAP as LOCAL repository.")
-    (license gpl2)))
+    (license gpl2+)))
 
 (define-public mu
   (package