diff --git a/lib/disposable/twin/property/struct.rb b/lib/disposable/twin/property/struct.rb
index 3f829b4..6cd0361 100644
--- a/lib/disposable/twin/property/struct.rb
+++ b/lib/disposable/twin/property/struct.rb
@@ -6,7 +6,7 @@ module Property
     module Struct
       def read_value_for(dfn, options)
         name = dfn[:name]
-        @model[name.to_s] || @model[name.to_sym] # TODO: test sym vs. str.
+        @model.key?(name.to_s) ? @model[name.to_s] : @model[name.to_sym]
       end
 
       def sync_hash_representer # TODO: make this without representable, please.
diff --git a/test/twin/struct_test.rb b/test/twin/struct_test.rb
index 8ed47f3..2e4a5ed 100644
--- a/test/twin/struct_test.rb
+++ b/test/twin/struct_test.rb
@@ -329,3 +329,15 @@ class Sheeeeeeet < Disposable::Twin
 
   end
 end
+
+class IndifferentAttributeAccessTwinStructTest < MiniTest::Spec
+  class Song < Disposable::Twin
+    include Property::Struct
+    property :cool?
+  end
+
+  it { Song.new(cool?: true).cool?.must_equal true }
+  it { Song.new(cool?: false).cool?.must_equal false }
+  it { Song.new('cool?' => true).cool?.must_equal true }
+  it { Song.new('cool?' => false).cool?.must_equal false }
+end
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