diff --git a/docs/firmware.md b/docs/firmware.md
index ff8f60c..3933835 100644
--- a/docs/firmware.md
+++ b/docs/firmware.md
@@ -103,7 +103,7 @@ The Chameleon also shows the following LED effects:
 The device enters sleep mode after about 5s unless it is plugged in USB or if a client is connected over BLE. You can use the buttons to wake it up again. You can also press quickly a button during the sleep animation to keep the device awake.
 
 ## Write Modes
-- Normal: Behaves like any norml card
+- Normal: Behaves like any normal card
 - Decline: Read only card
 - Decive: Accept write commands but dont change any data (reader thinks write was sucesful but when reading nothing changed)
 - Shadow: Accept writes but revert when device goes to sleep (reader can read and write like a normal card but it reverts when the chameleon goes to sleep)