diff --git a/docs/figures/can-protocol.csv b/docs/figures/can-protocol.csv
index 1bf194ca..572c4046 100644
--- a/docs/figures/can-protocol.csv
+++ b/docs/figures/can-protocol.csv
@@ -105,4 +105,5 @@ IEEE 754 Float","32
 1","0
 0"
 0x01C,Get ADC Voltage****,Master***,ADC Voltage,0,IEEE 754 Float,32,1,0
+0x01D,Get Controller Error*,Axis,Controller Error,0,Unsigned Int,32,1,0
 0x700,CANOpen Heartbeat Message**,Slave,-,-,-,-,-,-
\ No newline at end of file