diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 3a21343edf9..91743958bb7 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -2116,6 +2116,7 @@ facilities for checking incoming mail.")
            libsodium ; extra password algorithms
            libstemmer
            libunwind
+           libxcrypt
            linux-pam
            lz4
            openssl