diff --git a/test/unit/variable_unit_test.rb b/test/unit/variable_unit_test.rb
index 13d2cc4d..408ca8ee 100644
--- a/test/unit/variable_unit_test.rb
+++ b/test/unit/variable_unit_test.rb
@@ -6,6 +6,9 @@ class VariableUnitTest < Minitest::Test
   def test_variable
     var = Variable.new('hello')
     assert_equal VariableLookup.new('hello'), var.name
+
+    var = Variable.new('hello[goodbye ]')
+    assert_equal VariableLookup.new('hello[goodbye]'), var.name
   end
 
   def test_filters