diff --git a/halfhalf/readme.md b/halfhalf/readme.md
index f573de1..9b67465 100644
--- a/halfhalf/readme.md
+++ b/halfhalf/readme.md
@@ -4,12 +4,13 @@ http://www.40percent.club/2018/07/halfhalf.html
 
 BOM (per side)
 
-    29 1n4148 diodes
-    29 MX compatible PCB mount switches
+    22 1n4148 diodes
+    22 MX compatible PCB mount switches
     1 TRRS Jack Sparkfun PRT-12639
     1 Pro Micro 5v
     2 12pin headers or 1 24pin machined pin wide socket
     1 5.2mm SMT switch (RESET) https://lcsc.com/product-detail/Tactile-Switches_5-2mm-5-2mm_C92584.html
+    1 2U PCB mount stabilizer
 
 [How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html)