--- mutt-1.5.23/smime_keys.pl	2014-03-12 17:03:45.000000000 +0100
+++ mutt/smime_keys.pl	2015-09-27 07:13:21.000000000 +0200
@@ -53,7 +53,7 @@
 # Get the directories mutt uses for certificate/key storage.
 
 my $mutt = $ENV{MUTT_CMDLINE} || 'mutt';
-my $opensslbin = "/usr/bin/openssl";
+my $opensslbin = "@TERMUX_PREFIX@/bin/openssl";
 my @tempfiles = ();
 my @cert_tmp_file = ();