diff --git a/spec/acceptance/concat_spec.rb b/spec/acceptance/concat_spec.rb
index 0d5e83167..caf2f7d98 100755
--- a/spec/acceptance/concat_spec.rb
+++ b/spec/acceptance/concat_spec.rb
@@ -23,6 +23,17 @@
       }
       EOS
 
+      apply_manifest(pp, :catch_failures => true)
+    end
+    it 'should concat multiple arrays to one' do
+      pp = <<-EOS
+      $output = concat(['1','2','3'],['4','5','6'],['7','8','9'])
+      validate_array($output)
+      if size($output) != 6 {
+        fail("${output} should have 9 elements.")
+      }
+      EOS
+
       apply_manifest(pp, :catch_failures => true)
     end
   end