diff --git a/hardware/BOM.md b/hardware/BOM.md
index 5348655..856305a 100644
--- a/hardware/BOM.md
+++ b/hardware/BOM.md
@@ -5,6 +5,6 @@
 | ESP Microcontroller         |        1 |               |                                            |
 | SCT-013-100                 |        3 | one per phase | http://openenergymonitor.org/emon/node/156 |
 | 10 kOhm Resistors 1/4 W     |        6 | two per phase |                                            |
-| 22 Ohm Resistor 1/4 W       |        1 |               |                                            |
+| 22 Ohm Resistor 1/4 W       |        3 |               |                                            |
 | 10 uF Elko 10 V             |        3 |               |                                            |
 | 3,5 mm audio jack connector |        3 |               |                                            |