diff --git a/README.md b/README.md
index e7af7dd..456f47c 100644
--- a/README.md
+++ b/README.md
@@ -26,4 +26,6 @@ It is highly recommended to order the PCB assembled from JLCPCB. That assembly w
 
 ## Assembly
 
-Flash microcontroller with `firmware.uf2`. Solder MCU and Pin-Header to PCB. Screw everything into the case. Done!
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+Flash microcontroller with `firmware.uf2`. Solder MCU and Pin-Header to PCB. Screw everything into the case. Done!
+
+Hint: The cases Top half has one specific orientation where it fits nicely: The top-screw-posts of the top-half with the larger cutoaways go to the side opposite of the USB Connector.
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