diff --git a/src/tests/duplicate.t b/src/tests/duplicate.t
index 19ea26911..f148e7b03 100755
--- a/src/tests/duplicate.t
+++ b/src/tests/duplicate.t
@@ -28,7 +28,7 @@
 
 use strict;
 use warnings;
-use Test::More tests => 12;
+use Test::More tests => 15;
 
 # Create the rc file.
 if (open my $fh, '>', 'dup.rc')
@@ -55,6 +55,12 @@ like ($output, qr/Description\s+FOO/, 'duplicate modified description');
 like ($output, qr/Priority\s+H/,      'duplicate added priority');
 like ($output, qr/Tags\s+tag/,        'duplicate added tag');
 
+# Test the output of the duplicate command - returning id of duplicated task
+$output = qx{../task rc:dup.rc duplicate 1};
+like ($output, qr/Duplicated\s+1\s+'foo'/, 'duplicate output task id and description');
+like ($output, qr/Duplicated\s+1\s+task/,  'duplicate output number of tasks duplicated');
+like ($output, qr/Created\s+task\s+4/,     'duplicate output of new task id');
+
 # Cleanup.
 unlink 'pending.data';
 ok (!-r 'pending.data', 'Removed pending.data');