diff --git a/README.md b/README.md
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@@ -10,4 +10,6 @@ Wires, transformers, capacitors!
 # Asset Credits
 - Sound for the collapsible glider is by Iain McCurdy on [freesound.org](https://freesound.org/people/iainmccurdy/sounds/645974/), licensed under CC BY 4.0
 - Sound for the excavator ore conveyor is by tosha73 on [freesound.org](https://freesound.org/people/tosha73/sounds/584592/), licensed under CC BY 4.0
-- Sound for the electromagnet is by _MC5_ on [freesound.org](https://freesound.org/people/_MC5_/sounds/672082/), licensed under CC BY 4.0
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+- Sound for the electromagnet is by _MC5_ on [freesound.org](https://freesound.org/people/_MC5_/sounds/672082/), licensed under CC BY 4.0
+- Assets for several blocks are derived from @stfwi assets in [Engineer's Decor](https://github.com/stfwi/engineers-decor), licensed under MIT
+    - These assets include clinker bricks, slag bricks, and grit sand
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